Spike the bulldog, grateful to Jerry for getting him out of the dogcatcher's van, offers to help the little mouse any time he whistles. Tom, Jerry's feline tormentor, seeks to overcome this new disadvantage.
Schoolboy Donald is torn between his angel and devil sides, though in Donald's case, the devil side isn't hard to resist. But the smoking he's encouraged to do turns him green and gives him regrets, and when the good side shows up and kicks evil's butt, Donald cheers.
Chip and Dale are starving in their tree home when they notice a plentiful supply of acorns on an island in a lake. To get to the island, they borrow a miniature model ship of Donald's to sail on. The irate Donald, however, doesn't appreciate them stealing his ship and makes several attempts to get it back and thwart their scheme to get to their acorn paradise. Chip and Dale are, of course, always one step ahead of Donald.