迈克·斯特吉斯和他的弟弟罗伊，被以捏造的火车抢劫罪判处押解到尤马监狱两人都忍受着残酷的对待，然后迈克逃走了，报复他们的敌人。...

　　In the near future, glacial melting has covered 98% of earth's landmass. Sharks have flourished and now dominate the planet, operating as one massive school led by a mutated alpha shark...