Tonton Streaming Heathcliff and the Catillac Cats (1984) S1E117 - The Great Tuna Caper

Heathcliff, eating the Nutmeg's out of house and home, is sent out to earn his own tuna money. He lands a job on a tuna boat where he tangles with the bad dog from a nearby pirate trawler who has just stolen their entire catch.