During the war off Nova Scotia a fishing boat comes across a badly damaged Danish schooner with only the captain aboard after it has apparently been shelled by a German U-boat. Not realising the sinister real purpose of the larger boat, the fishermen agree to tow it into an isolated harbour. Written by Jeremy Perkins

During World War II, Pat Bannon's whaler sights a shell-ridden Danish four-rigger in the waters off of Newfoundland. The crew has fled and only Captain Skalder is aboard. Thinking it has been a victim of a German U-boat, Bannon agrees to tow the vessel to a small Newfoundland port, the destination of the whaler's sole passenger, Margaret McLean. During the voyage it becomes apparent that one of the whaler's crew is a Nazi agent. In port, Bannon and Conrad, a crewman who proves loyal to the Allied cause, discover the the vessel they aided is a U-boat supply ship. Written by Les Adams