Following in the hilarious fun-steps of "Mister Roberts"

1945, on an old cargo ship somewhere deep in the Pacific ocean: Captain Morton strives to become commander, so he demands the maximum quality of work from his crew, without granting them any freedom or favors - ignoring that they're thousand of miles away from the front. In one word: he drives his crew crazy. They are near mutiny, but no-one dares to do the first step. Until Ensign Pulver plays a prank on the captain that triggers fatal consequences...