Rick (Michael Denison) is a costal command pilot patrolling the English Channel for U-Boats. He sinks what he believes is a German submarine, but which later proves to be British. He is charged with neglect and volunteers for a perilous mission. Meanwhile, his girlfriend Mona (Patricia Plunkett), through some odd information she has picked up, is trying to prove that Rick is innocent of the charges and actually did sink a German U-Boat.
Landfall
During WW2, an RAF pilot from coastal command is accused of sinking a British submarine that he mistook for a German one.
