The POWs are marched across Germany—and Rosie makes a gruesome discovery—as the war comes to its conclusion.

Crosby prepares for D-Day. The POWs wonder how the Allied landing will affect their fate. Tuskegee pilots attack targets in Southern France.

Claudia reveals to Adam how everything is connected — and how he can destroy the knot.

Adam holds Martha captive in 2020. On the day of the apocalypse, an increasingly frantic Martha begs Bartosz for his help.