In the town of Grandview, a scientist discovers an asteroid heading towards Earth, but then discovers a UFO hurtling alongside it, which crashes onto Earth. When he goes to investigate, he vanishes. Years earlier,
Daffy Duck and
Porky Pig were raised by a farmer named Jim, who left everything to the duo before he died under the promise that they would learn the power of responsibility through relying on each other. In the present, Daffy, now a duck with its selfish attitude, and Porky, a cute pig, fail a
home inspection when the inspector, Mrs. Grecht, points out a gigantic hole in their roof (caused by the UFO). With little time to repair their house before it is condemned, the duo is forced to come up with money to pay for the repairs. After being fired from multiple jobs due to Daffy's antics, the duo come across
Petunia Pig, a scientist working at the Goodie
Gum factory, trying to find the perfect flavor. She offers the two a job at the factory, and they accept. After completing their first shift with no issues, Daffy discovers the scientist pouring green goo into the gum supply. Recognizing the goo as the same residue lining the hole in their roof, Daffy tries to alert Porky, but he dismisses it as paranoia. The new gum flavor is launched worldwide, and Daffy realizes everyone who chews the gum gets turned into a
zombie. He tries to warn the public at the launch party, only to get arrested after he annoys the Mayor. Consequently, he and Porky are fired. After a frustrated Porky bails Daffy out of jail, the duo meets up with Petunia again. Daffy asks her to investigate a gum sample, and she discovers an alien invader is responsible for contaminating the gum. The Invader turns the gum into a sentient monster to eliminate the three from thwarting his plans, but they defeat it. Getting an idea, the three conceive a plan to spray people with Petunia's rotten egg extract to make them spit out the gum and burn it while in mid-air. Concerned that Daffy will only get in the way, Porky tells him to stay behind and lay eggs to produce more extract. Porky and Petunia are successful in their plan until Daffy decides to step in and try to fight back as well, causing him to accidentally destroy their weapons. Petunia is captured, while Porky and Daffy's house is destroyed and they are abducted by the Invader, where they fall out and get imprisoned. With all of Earth's population under his control, the Invader initiates the second step in his plan, which has everyone blow a bubble big enough to encase the entire planet. Daffy and Porky reconcile and escape confinement, managing to free Petunia and the scientist as well, and popping the bubble. However, it turns out the Invader was trying to protect Earth, as the asteroid from earlier is still hurtling towards the planet; he planned to use the gum bubble as a shield to bounce the asteroid away, saving Earth and its precious resource of
boba tea that he cherishes dearly. Remembering Petunia's exploding gum, the three, with the help of the Invader and the scientist, enter a weak spot in the asteroid and place a surplus of the gum by a large crystal, where a surplus of wind-up novelty teeth will chew up the gum. When the teeth are accidentally tipped over, Porky instructs Daffy to go crazy, where his antics cause stalactite crystals to fall and "chew" the gum. However, when the three attempt to escape, Daffy gets stuck, and Porky refuses to leave his side. The asteroid explodes before hitting Earth, and Daffy and Porky are presumed dead. Whilst everyone on Earth celebrates, Daffy and Porky are revealed to have survived as they crash-land on Earth stuck to a large asteroid crystal, much to the joy of Petunia, who kisses Porky and also discovers the crystals are the missing ingredient for her perfect gum flavor. As Daffy and Porky examine their destroyed house, Porky with the help of Jim's spirit, discovers behind a family portrait he saved earlier that Farmer Jim left them a $5 million
home insurance contract, thus allowing them to build a new house. Mrs. Grecht returns for a follow-up inspection, only for Porky, Daffy, Petunia, the Invader, and the scientist to flex their new
mansion to her, causing her head to explode. ==Voice cast==