The Easter bunny brings an egg for Tom and Jerry that hatches into the little duckling. He keeps getting into water he shouldn't: the aquarium, water cooler, bathtub, sink, as the boys keep rescuing it. They try to give the duck back to the Easter bunny - no go. They leave it in the pond at the park and think they're home free, until the duckling brings his friends home.
Nobody's home, so Tom invites his alley cat friends in to look at home movies (clips from earlier cartoons where Tom gets the drop on Spike). While they're showing them, Spike sneaks in.
An alley cat is foraging for food when he sees Tom's house and decides it's a rich haul. He dresses as a foundling baby and lands on the doorstep. Tom takes him in and Butch proceeds to raid the fridge between Tom's babying him. What he doesn't know is that Jerry's going to grab the ham Butch swiped every chance he gets.