One Step Beyond (1959)

Season 2: Episode 3

During WWII, a drunken pharmacist's mate must operate on the injured captain of his ship. The chief medical officer on a near-by ship assists the terrified young man perform the operation by providing instructions over the ship's radio. But at a crucial moment in the operation, the young man needs much more than this . . . and he receives it from an unearthly source . . .