When John Connor, leader of the human resistance, sends Sgt. Kyle Reese back to 1984 to protect Sarah Connor and safeguard the future, an unexpected turn of events creates a fractured timeline.
After a near-fatal plane crash in WWII, Olympian Louis Zamperini spends a harrowing 47 days in a raft with two fellow crewmen before he's caught by the Japanese navy and sent to a prisoner-of-war camp.
Tris Prior must confront her inner demons, and with help from those closest to her, continue the fight against a powerful alliance that threatens to tear her society apart.