O'Brien is the sub commander, who loses the trust of his crew, Garner the naval officer assigned a commando mission-but the real story here is the vintage cast-Richard Bakalyan and Warren Oates are joined by TV's familiar faces: Edd (Kooky) Byrnes, Henry (Otto Schmidlapp from "Life of Riley") Kulka, and Alan (the Skipper from "Gilligan's Island") Hale Jr. The fine performances are punctuated by adequate action scenes that result in a very watchable picture.