A sea captain fights with the British authorities who aim to take control of his vessel, the blockship "Ebb Tide," in the English harbor known as Quay South. Set in 1940, this gripping military drama based on the Howard Clewes novel was originally broadcast as an episode of "ITV Television Playhouse." Roger Livesey, Michael Bates, Miriam Karlin star. 54 min. Standard; Soundtrack: English.