Sigmund and the Sea Monsters (1973)

S1E13 Trick or Treat

During a night of trick-or-treating, Blurp and Slurp discover that Sigmund has won a lucrative contest, earning him a hefty sum of "clams." Seizing the opportunity, the mischievous duo decides to kidnap him, hoping to cash in on his good fortune. As the Halloween festivities unfold, Sigmund must navigate the challenges posed by his unexpected captors while trying to enjoy the holiday.