Porky has a particularly menacing mouse in his house; after his traps, and an increasingly nasty set of cats all fail, Porky builds a robot cat. This cat proves to be a much bigger challenge for the mouse, who ultimately builds a robot mouse packed with explosives.
Babbit hypnotizies Catsello, despite his efforts to resist, into believing he's Bing Crosby, Frank Sinatra, and Jimmy Durante, then a chicken, and finally a dog, who he sics on the cat. The cat hypnotizes him back. Finally, Catstello hypnotizes both of them into cowboy and horse, leaving him alone to enjoy the deli they live in.
Elmer Fudd walks out of a typical Bugs cartoon, so Bugs gets back at him by disturbing Elmer's sleep using "nightmare paint."
One long chase: worm chases apple; bird chases worm; cat chases bird; dog chases cat; dogcatcher chases dog; dogcatcher's wife chases dogcatcher; mouse chases dogcatcher's wife. With occasional interruptions by a skunk.
Hugo and Rocky (caricatures of Edward G. Robinson and Peter Lorre) make it home to their hideout only to find Bugs already settled down there for the night.
Young Henery Hawk's father regretfully admits their family's shame: they hunt and eat chickens. Henery set off to find one, and comes across Foghorn Leghorn, where the loudmouth rooster is engaged in his favorite pastime, playing tricks on grumpy Barnyard Dog.
A mosquito army trains for, then goes on, an attack mission.
Movie patrons watch and interact with a variety of short subjects and a spoof of the film "To Have and Have Not."
While reading his favorite comic book, Daffy accidentally knocks himself unconscious and dreams he's Duck Twacy, famous detective, trying to solve the case of the missing piggy banks. Taking a streetcar (conducted by Porky Pig, in a non-speaking cameo role) to the gangsters' hideout, he meets up with such grotesque criminals as Pickle Puss, Eighty-Eight Teeth and Neon Noodle.
Anxious to get to work with the big guys damming the river before the flood hits, a little beaver keeps getting in the way of their work. Finally, the foreman sends him off to chop down that big tree "way over there." Meanwhile, the flood rushes closer and closer.
When the circus arrives they put the lion's cage right over Bugs' rabbit hole.
Daffy sneaks onto the Warmer Brothers lot, eventually posing as a tour guide. Daffy spoofs a number of contemporary stars, and others appear as "themselves". He also has a number of run-ins with a studio cop.