Eighteen months have elapsed since the conclusion of Day 3. A commuter train bound for Los Angeles explodes. A man steals a suitcase from a passenger in the wreckage and…

Jack pushes Driscoll to reinstate him in the wake of Heller’s kidnapping. He finds himself working as a subordinate when the Field Ops team goes to pick up Andrew. Behrooz…

The team investigates the death of a woman whose body was cryogenically frozen before being dumped in a swamp; Cam is nervous to meet Arastoo’s parents; Booth is up for…

The race between the attending physicians for the Chief of Surgery position heats up after a new competitor enters the fray. They soon realize that the new surgeon, Colin Marlow,…