The series follows the Ocean Patrol's patrol boat P-1. The patrol boats are small submarine craft, comfortably sized to be manned by 3 or 4 people. They are also capable of flight for limited times using retractable wings (episode 4, 27). Patrol boats may be heavily armed, most commonly with small "rocket torpedoes," but optional weaponry is sometimes mounted. These have included a heat beam, boxing glove missiles (ep. 4), smoke screen (ep. 4, 14), a heavy saw, sonic cannon (ep. 9), a steel net (ep. 11), power claws, drill and laser beam guns (ep. 28). The crew of the P-1 includes Bolton and Piper (a double act, reminiscent of Laurel and Hardy) and often the Ocean Patrol member Marine Boy.