Chip follows Clarice into the big city to find where she gets more food than he and Dale, but his plans go awry when Dale gets madly obsessed over pizzas and gets a fight with a Beagle Boy who stole a pizza. The mafia leader tricks Chip and Dale to move out of their home to bring space to his mother. The tender manners of the grandma chipmunk moves Dale, while Chip tries to do his best to pull her out of their home for good. During their summer vacation, Chip helps the other animals stay happy by using Dale as his sidekick, but the latter insists that Chip should do everything himself.