>> the next minute, absolute terror under water. >> i thought the boat had gone over and over. it just felt like you were in a bit of a washing machine. a dash cam in a cockpit shows the pilots trapped upside down. >> "king of shaves" has crashed. >> liz and will are desperate to know what's happening. >> i guess time just froze. all i could say to will was, can you see their helmets? can you see they're out? >> there weren't any safety boats in the immediate vicinity. it was just a silence. i just thought, james, are you okay? >> but james is not okay. the pilot's oxygen valves are flooding and they have to reach the surface fast in order to survive. >> the drill was that chris goes out through the floor of the boat first. which is now the top of the boat. >> they can barely see each other and communication is