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.

Follow-up series to 'Vikings' set 100 years afterward and centering on the adventures of Leif Erikson, Freydis, Harald Hardrada and the Norman King William the Conqueror.