Derailed (2005)

The BAU are called to work on the case of Teddy Bryar, a former physicist and now delusional psychotic, who has hijacked an El Paso to Dallas train. Bryar killed a security guard in the initial gunfire. The BAU rush to the scene when they learn that one of the hostages is Elle, who was on a business trip alone. Teddy, egged on by his "delusion" named Leo, is aware that Elle is an FBI agent from her case file folder. The other hostages on that specific car are Dr. Linda Deaton (Teddy's doctor, who was heading to a conference on psychosis where Teddy was supposed to be a success case study); Elaine Curtis (a young single pregnant woman who was heading to get an abortion); Josh Patel (a young man with a history of drinking and driving and who had been disowned by his family for doing so); and Harold Anderson (an armed but unbalanced and meek man who was heading to shoot his estranged wife). Teddy will not negotiate with anyone except those he deems to be the "higher authority". The BAU have to learn what Teddy's delusions are and who or what the higher authority is. And they have to find a way to communicate with a handcuffed Elle who needs to act as the on-board safety net for the other hostages. When the team learns Teddy's delusion, Reid proposes a risky maneuver.