emotionally numb and trying to come back to a world that is totally indifferent is more challenging than the combat itself. >> when you say they're hyper alert, do you mean they have to come down from a peak level of tension, anxiety almost which prepared them for battle and they return and they're supposed to go to the is grocery store? >> they come from the word of life and death, dust and blood to a society that is more concerned about what they're wearing and what kind of cars they're driving. it's very difficult to reconcile this. coming from so much trauma, these traumatic experiences, you have to almost become emotionally numb to be able to shut that off. it takes time to really transition back. >> and how do these soldiers cope when they interact with people who seem indifferent to what's going on so many thousands of miles away? >> it's very hard. someone asks you how was afghanistan, how do you respond. i hope by showing this story of this one marine and his wife what it's like to actually go to