War is hell, especially if you're a G.I. suffering from Shell Shock! Bonked on the head during the Battle of Bronson Canyon, Johnny Wade is ready to crack. But that doesn't stop rotten Sgt. Rance from sending Wade out to capture a German ammo dump which results in Johnny having a complete mental breakdown. All that's left after the Battle of Blood Island are gloating Japanese and a beach littered with dead G.I.'s. But two of the "dead" aren't: Moe is just playing possum while Ken is alive but seriously wounded. Essentially strangers, the two must learn to work together, elude the enemy, and somehow survive, despite an unwelcome explosion of some old-fashioned American bigotry.