“LAST DIVE OF THE SEA DEVILS.” After hearing radio reports of a UFO sighting, the Sea Devils, out in the boat Sea Witch, encounter the giant "King Neptune" who is spearing boats from a giant seahorse! Plus, “UNDERSEA SCAVENGER HUNT.”

Will the Sea Devils be able to pull through against a trident-wielding terror from beyond the stars? Perhaps... but they won't come away unscathed!