导演詹姆斯·卡梅隆特别选在俾斯麦号战舰沉没六十一周年当天，邀请当时舰上的生还者、击沉他们的敌舰人员、以及一群专业的探险小组，一同潜入险恶的深海中，再度登上俾斯麦号战舰，以见证这段永恒不朽的历史传奇，同时也藉此机会探索当时战舰沉没的真相。...

　　In a gritty near future, an ex freedom fighter reluctantly jumps back into the fold after discovering a disturbing secret that could bring down the company that owns the world....