Junior finds a mermaid on the beach. He intends to show it at Bluto's boat party with the Mayor. / When Popeye and Olive get into a big argument on their anniversary, it's up to Junior to smooth things.
Bluto and Tank capture a rare sea monster which has taken a shine to Polly and Poopdeck Pappy tells Junior's class all about the Popeye family tree, but only succeeds in embarrassing his grandson.