Day 4: 7:00am-8:00am

The following takes place between 7:00am and 8:00am

A commuter train rides on tracks bound for Los Angeles moving through the Santa Clarita Valley. Inside is Brody, a man who is handcuffed to a titantium briefcase with two guards watching him. The briefcase will be of importance later on in the season. As the conductor drinks his coffee, he sees a truck full of explosive material. He brakes the train but it's too late as the train crashes onto the truck on the tracks resulting in a explosion. A helmeted bike rider named Dar watches the incident he staged and drives to the site of incident. A woman pleads but he ignores her and finds Brody struggling on the ground. Dar walks to him, takes out a suppressed pistol and shoots him at point range. Dar gets a bolt cutter, cuts the handcuff, taking the briefcase and drives off into the morning sun.

7:03am COUNTER TERRORIST UNIT LOS ANGELES Sarah Gavin and Chloe O'Brain look up somebody in the FBI watchlist that was spotted in the city. Tomas Sherek, a Turkish terrorist, may be linked to a threat in the United States and a scheduled attack will be at 8:00am.

7:04am Erin Driscoll talks on the phone and gets word of the train incident. Chloe tells her about Sherek being in the city.