Subjects pulled over on seventh hes getting out on foot. Don colby, david, mo in were gonna have to tagteam him. Colby i got him. Hes carrying a gym bag and headed east. Yeah, that puts him heading toward you, david. Hes crossed over to the south side of the street. David im almost at seventh. I should have visual with him any second. Damn, that was close. What . David, he make you . No, i dont think so. Just tell them to stay back, because if asan realizes that were on to him, then the whole structure of this terror cell will change. Charlie, they know what theyre doing. I spent days on this working with what little we have, so please. Guys, keep your distance, all right . All right, gotcha. David copy that. Ill circle around back. I dont see him. Don, weve lost visual. This guys the only link, the only link we have to the rest of these terrorists. Charlie, i know that. David, you got him . I just picked him up. Hes at the north end, headed toward the cold storage. He still has the gym bag. Why dont you watch where the hell youre going watch where im going . You walked right into me what are you, an idiot . Im pushing a truckload of vegetables. How hard is it to see me coming . Don, we might have a problem. thudding, grunting this is getting out of hand. Hold your position. Just hold your position. Freeze drop that crowbar. Put it down. This is a lot of cash, huh . Where were you going with all this . Look, we know it was gonna be used to pay for a terrorist attack here in l. A. Colby we know where the money came from; we know youre a part of a terrorist cell that was operating locally. You keep using that word, terrorist. Im a soldier, fighting a war america initiated. Your war again islam. Colby come on, man. Youre from fullerton your name is timothy. Kaleed asan. Is my name now. I want to know about that attack. Wh are you gonna tell me about that attack . Only that its gods will. And you cant stop it. We get anything out of him . Don, i had no choice. I had to take him. Yeahi told you to hold. He was gonna kill that guy. Right, david, the question is, how ny thousands of lives did we trade for that one. Oh, yeah. Let me talk to him. I doubt youre gonna learn anything from him. I dont know about that, charlie im feeling pretty persuasive right now, okay . No. He doesnt en know enough to help us. The structure of a terror cell is what we call a distributed autonomous network. Its made up of a number of independent parts working collectively, but theres no lateral communication. Think of those huge signs at a baseball game, where everyone in a particular section is asked to raise a card above their head. Now, the designer of the sign uses a blueprint to place the cards under the individual seats. The fans dont need to know what the message is. They just need to know what their particular job is; in this case, raising the card. So once the message is formed, the mission is complete. And its the same thing with the structure of a terror cell. Individual players only need to know their parts, nothing se. All right, charlie, what about using more math you know, filling in more of the Network Diagram . You know what . Frankly, i dont even know if this much is correct anymore. A terror cell struure is dynamic, that were on to them, the structure of their entire organization is likely to change. Thats great. speing arabic so you have 10 Years Experience . I do but no phd. First kid heres all the numbers, foods in the fridge, oh and lucas. Likes to pull on jewelry, so you might want to. Lose the nose ring by their second kid, every mom is an expert and more. Likely to choose luvs than first time moms live, learn and get luvs what happened . How did you make this . What is this . How did you get up there . How did it go . What did you do . Wake up what . What . How . Asking the right questions. Thats caring. 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Your perfect record doesnt get you anything. Anything. Perfect. For drivers with accident forgiveness, Liberty Mutual wont raise your rates due to your first accident. See Car Insurance in a whole new light. Liberty mutual insurance. Uhh, this place is the worst. He said he had a big screen. I cant see. I love watching football here. Best game day ever. With new tostitos spicy queso dipetizers. Feel a spark of emotio light up every inch of you. Feel warm inside. Feel our big beautiful candle. Feel glade. Okay, listen up. Were racing the clock here. For those of you from visiting agencies, im assistant director wright. Agent eppes has been handling this since it broke, so im just gonna hand off directly to him. Agent. Ten days ago, cia operatives in yemen found a laptop. It had information about the funding of a terrorist attack here, in l. A. Now, charlie, professor charles eppes, came up with an algorithm that identified this man as the guy whos going to get that funding. Now, he also identified two other possible conspirators. Now, we think theyre lowlevel, part of a homegrown cell operating here in l. A. Americanborn, but definitely did time hopefully, charlie will keep making progress on his angle and we just got to get going on ours. Okay, the threat is real. The nsa is reporting an increase in terrorist chatter. Weve intercepted funding and apprehended an active participant in the plot, so we need to do anything and everything within our power to figure out what were up against and stop it. Captain adams, army d. How you doing . Do you know charlie . I may have some information about your suspect. What asan . Yeah. Youre aware of his time spent in the army . Yeah, thats where he converted to islam, right . There was another soldier there michael rains. Hes since taken the name ali al dossari. Uh, thats not a name i came across. Well, they were in the same unit. In fact, it was al dossari o convinced asan to convert. They were given general discharges around the same time. Wow. This guy may be the level two connection im looking for. You get an address . No, my information ends at the time he was discharged. Okay, but, captain, any background you may have will help you with my work, so. Ive got a duplicate file. Thats terrific, thank you. By the way, professor, novel approach you trying to map out the groups structure mathematically. Distributed Autonomous Networks are a wellaccepted field of study. If you say so. Ive been in antiterrorism for ten years. I havent found a substitute for basic information gathering. Well, informations only as good as what you can do with it. Okay, got an address on al ssari. Any reason we shouldnt go right at this guy . Cell structures already disrupted. They know were on to them. Don all right hey, guys were gonna bring this guy in. You want to fill them in on the way . knocking david ali al dossari. Fbi. It looks clear. Yeah, hes not here. Take a look at this. He was forging marine i. D. s. Maybe theyre gog to try to sneak on to a military base. Could be the next target. Tons of explosives available on a base if you can get to it. Sergeant surplus a military Surplus Store. Ill alert the local bases, have them double up on security. If were not already too late. These guys are way ahead of us. Oh, there you are, charlie. Whats all this now . Im, uh, using connections between weighted vertices to, uh. To find a way to link this man to the times, dates, places and people that weve already associated with the terror cell. I see. Having any lk . I am, actually. If im correct. He belongs. Right. Here. Is that sort of a breakthrough . Yeah, the only downside is i didnt find him on my own. Since when has sharing credit been a problem for you. Since im sharing it with an army captain pretty scary, isnt it . I mean the fact that there might be a terrorist attack in los angeles. Well, a terrorist attack just about anywhere is scary. No, you know what i mean. I mean the city is so enormous. A lot of, uh. Vulnerable targets. phone rings hey, i was just about to call you. Don dossari is definitely connected to this. Yeah, thats what i was gonna tell you. Adams beat you to it. I mean they found evidence in dossaris apartment linking him to asan. So, i just wanted to let you know, okay. Ill check in with you later. Hey. So, the clerk at the Surplus Store i. D. d al dossaris picture. Said he came in and bought two sets of marine fatigues. Full deal, boots to caps. Fake i. D. s, uniforms what, these guys can basically walk onto any base. Just got a report from lapd. There was a theft last night; Chemical Supply Company out in alhambra. Security guard was killed in the process. Place called rne chemical supply. Colby is it relevant . It sounds like a civilian facility. Yeah, it is. Dressed as marines. David the owner says the company does a lot of business with local military bases, mostly supply and cleaning chemicals and a few medical supplies. As a result, a lot of soldiers do pickups. Gate guard saw the uniforms, the badge, he opened the gate. We get anything on this truck . David vehicle was stolen from a company that provides vehicles to movie studios. It was a prop. Yeah. They dont have video cameras in the chemical storage area these guys got into, but you can see them coming out right about here. Guard started to question their paperwork or, um. They didnt have any. Whole thing took less than six minutes. They knew exactly what they were after. Chemical called mpdc. It stands for methylphosphonyl dichloride. Is that an explosive . Its a lot worse than that. Its the major component in the deadly poison sarin. But its only a component. Yeah, it has to be mixed with several other chemicals, trimethyl. Phosphorsomething will you run a check on that . I did turns out three weeks ago, 60 gallons of it went missing from a train yard in colton. Oh, my god. They got everything they need to make sarin. Yeah, and enough of it to poison half the city. Okay birth plan. Top of the brown box. Alright got it aromatherapy. Lotion. Woo. Grey basket bottom right. You are so organized. And the selfie stick. Yeah dont give me that look. Life is packing for an early delivery, d an ikea closet thats always ready. Ah, a classic case of who dunnit . Luckily, jay chews trident to help clean and protect his teeth, so he can claim his innocence with a convincing grin. Thats it jay, theyll never know. Trident. Cherishour teeth. We were below the 88th southern parallel. We had traveled my men driven nearly mad from starvation and frostbite. Today we make history. Bienvenidos welcome to the south pole if youre dora the explorer, you explore. Its what you do. What took you so long . 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Liz im sorry your favorites . With a different appreciation than you or me. Admittedly. You see, sarin is an efficient, elegantlystructured molecule that does precisely what it was designed to do. Yeah, whats that . Kill. Its a nerve agent, an extremely volatile one, to boot. It evaporates quickly. It becomes a vapor. So people breathe it, theyre affected. If they breathe it or ingest it, or if comes into contact with their skin or eyes. So what do we look for . What are the warning signs . Wouldnt be as effective if there were warning signs. Theres no odor, taste or color. For the most part, the sudden symptoms are the only indication of exposure. All right, so let me ask you this if you had the components, how difficult is it to manufacture . It definitely requires some skill, but most of the grad students here could do it. And an important aspect of that sarin has a short shelf life a few days so its usually kept in its binary components. Meaning, once its mixed. Charlie hey, dad, the population density studies, the ma, the stuff from when you were a city planner, all the traffic flow diagrams, where is all that stuff . I left it in the garage. Oh, i keep it, uh, handy. You took it . Yeah, its right here. Oh, okay. Ever since youve been working with your brother, this stuff has had almost as much use as when i was working. Thank you. So whats happened you come up with some other breakthrough . Yeah, the attack were worried about, it could be sarin. Sarin . Wow. Ye, the fbis putting together a list of potential targets. Im going to use a threat analysis to see if i can determine which is the most likely target. Well, if its a gas attack, theyd have to through some enclosed venue, wouldnt they . I mean, like the subway or, um, shopping malls. Yeah, maybe. The thing is, these guys potentially have a lot of sarin, they dont have a lot of operatives. So the question is, how can a couple of guys distribute a lot of sarin . So, assuminghey want a high casualty count with a more pinpointed application of sarin. Maybe i can mark off some possible targets on this map. Maybe i could come up with something. David county health sent an alert to area hospitals advising to stock up on sarin antidote, right . Yeah, lets hope they dont need to use it. Thats just it, they already have. The emergency room at Good Samaritan admitted two patients about an hour ago both confirmed cases of sarin poisoning. All right, but theres only two . What, twos not enough for you . Think about it if this was an attack, itd probably be more than two victims, right . It means these two probably arent victims, theyre either mixing the chemicals or transporting them. Theyre part of the plan. You guys awake . Can you hear me . Ill find someone. Woman whats going on in here . You stay away from him. Were federal agents. Were conducting a terrorism investigation, maam. You think my husband and son are terrorists . They were poisoned. Someone did this to them. How . I mean, where do u think they mightve come into contact with sarin . I dont know. They havent been out of my sight. We were moving into our first house. Our very own. You were moving . We were packing. My husband and son were carrying boxes, loading them into the truck. I went outside to help them and i found my husband collapsed. I thought it was a heart attack. And then i saw my son, too. Whose truck were they loading, maam . I dont know. I mean, its a rental. My husband got it last night. David, man, what do you think of warner . What do you mean, what do i think . You know, weve been teamed up a couple of times. Seems like we have a pretty good vibe going, you know . Granger, dont seriously. Why not, man . Warner and don, thats why not. There is something definitely going on there. Really . Don. . What . Whats going on . Nothing. The hazmat guys are ready to go. loud beeping david its safe. Spill was localized to a small spot in the cargo area. Its been neutralized. Do we know who rented it . The guy used a fake name and a fake i. D. We have a composite artist working on a photo. Meantime, were pulling prints off the truck. Pulled almost a hundred so far. Charlie hey, don. Whats going on . What are you guys doing here . We finished modeling the different attack scenarios. I think we got their target nailed down; its very ingenious. Take a look. What are you talking about we . Its the water supply. Probability of an attack there is four times greater than at any other target. Water supply . Sarin is a gas, right . It can be, but it starts off as a liquid that completely dissolves in water. Thats why using the water system makes perfect sense. They dont have to spread the poison themselves. They can let the city distribution do the work for them. Let me talk to you a second. Yeah. Whats up . Ats going on . Whats he doing here . Who, dad . Yeah. Hes helping me. Hes been invaluable, actually. Why not . Because, a its dangerous, b people have been poisoned. I mean, what are you talking about why not . You dont seem too worried that im involved. Of course m worried youre involved. Agent eppes, i think we got it print from the glove box matches a print on file with customs. Josef haliz, algerian national. Homelands already got a whole file on him. door opens ho your fire hold your fire i want these guys alive. Need eyes and ears here. Somebodys got to get me eyes and ears in there. I hear talking; its more than one person. What are they saying . Its in arabic. Agent eppes, we got video. Its a lab. Theyre set up for mixing sarin. Davi theyre still talking, i cant make it out, don. Oh, theyre praying. Colby, get out of there. Lets go, everybody, move in. Move, move, move, move fbi damn it, we better lock this place down. 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