Saltwater Tuffy (1975)

Dogfather loses his yacht to Lucky McGraw in a poker game, and orders Pug and Louie to steal it back. They try everything from getting inside the boat and confront Lucky, to fishing the boat, which fails. Eventually, Lucky McGraw sells the boat back to the Dogfather, and he tells Pug and Louie to abandon the sabotage, only it was too late and they sunk the boat.