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.
A fleet of ships is forced to do battle with an armada of unknown origins in order to discover and thwart their destructive goals.
A Pakistani submarine, Ghazi plans to secretly attack Vizag port. For doing so, it has to get past Indian submarine S21.