The Looney Tunes celebrate Halloween; a close friend of Daffy and Porky is taken to their final resting place; Witch Hazel runs after an ingredient which is needed for her spell; a suspicious motel is found by Sylvester; Bugs comes across a mummy.
Bugs Bunny faces off against Taz in the Roman colosseum. Marvin accidentally plants his flag on the home of an irresistibly cute Martian. Wile E. Coyote orders a weather control kit, but his chances of catching Road Runner remain cloudy.
Bugs Bunny tries to foil Marvin the Martian's invasion of Earth. Ralph Wolf tries to steal a sheep from Sam Sheepdog's flock by using various disguises.
Gangsters Rocky and Mugsy hide out in Bugs Bunny's rabbit hole and soon regret it; Daffy requests Porky be his assistant for his `magic trick' on stage, but he just ends up handing him a mop to clean the stage.