A monster-movie director (Pat Morita) wants permission from the Hendersons to use Harry in one of his films.

While on a camping trip with his son and his co-worker, George is nervous because his co-worker keeps on playing pranks and later mistakes Harry for a monster.

Sarah tells her boyfriend about Harry and jeopardizes the Hendersons' secret, and her love life, when she invites him to dinner.

A French linguist studying Harry's speech speaks the language of romance to Sara and that translates into trouble.

George learns that shore waters are being polluted by a construction company owned by his friend and biggest advertiser.

When Sara considers enrolling at an arts college 200 miles away, an overprotective George has trouble letting go.

Brett can't seem to choose between a witty waitress who wants a commitment and a more voluptuous cosmetician who doesn't demand commitment because, as Nancy says, "it has three syllables."