When a duck hatches from the egg underneath Tom, the newborn (Little Quacker) is convinced Tom is his mother. Tom would like to eat the duckling; Jerry is determined to keep that from happening.
Jerry's eccentric uncle, Pecos, a Texan mouse, comes to spend the night with him before his musical performance on television the next day. He decides to rehearse with his guitar for the performance but each time he plays, one of his guitar strings snaps off. Fortunately, he is able to replace them by plucking off one of Tom's whiskers each time. Tom is rather reluctant about this and tries to hide to protect his whiskers from Uncle Pecos.
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.
Mousketeer Jerry has a love letter to deliver to darling Lilli. He gives it to his young pupil, who has a hard time getting past Tom to deliver it, but he does. They send a few more letters back and forth, at great pain to the youngster.
Tom designs a better mousetrap that would have made Rube Goldberg jealous. While he sleeps, the mouse that Tom drew wakes Jerry and they get chased by the cat Tom drew. As Tom awakes, they make a strategic alteration to the design.
Spike is taking his son on a picnic. Jerry keeps hiding in the basket, so Tom keeps disrupting the picnic while chasing him.
Jerry's little duckling friend has packed his bag and is all set to fly south for the winter despite the book Jerry keeps showing him that points out that domestic ducks do not fly south, and despite his inability to fly at all.
A psychiatrist becomes the new Sorcerer Supreme of the Earth in order to battle an evil Sorceress from the past.
1000 years into the future, after the Great Neutron Wars, the world is divided into desert wastelands and isolated city-states. Notorious "Desert Ranger" Kaz is forced to fight in the DeathSport, dueling on futuristic motorcycle "Death Machines". With the help of renegade vixen Deneer, Kaz must face his past and fight to save himself and his people.
A workman finds a singing frog in the cornerstone of an old building being demolished. But when he tries to cash in on his discovery, he finds the frog will sing only for him, and just croak for the talent agent and the audience in the theater he's spent his life savings on.
Butch, a mean bulldog, teaches his young son about the facts of life, including how to attack cats. The pup is at first frightened when he encounters Sylvester, but the youngster (remembering his father's lesson) soon becomes a thorn in the pussycat's side.
While cooking a tin can, the Coyote spots a better meal rushing by: the Road Runner.