After years of investigation, Assistant District Attorney Martin Ferguson has managed to build a solid case against an elusive gangster whose top lieutenant is about to testify.

When thrill-seeker Cricket tricks his family into taking a "road trip" in space, chaos in the cosmos quickly ensues. Despite growing frustrations between Cricket and his dad, Bill, the two must learn to appreciate each other's unique perspectives in order to prevent Big City from being destroyed by an interstellar disaster.

In Holland, Pluto acts as a milkman (dog?) leaving canisters of milk on the town's doorsteps. While going about his job, he falls head over heels in love with Dinah the dachshund. In his enthusiasm, he accidentally rings the dike bell causing the town to think the dike is leaking. When the fraud is exposed, Pluto and Dinah are kicked out of the town. Upon leaving, they both notice the dike actually has sprung a leak. While Dinah plugs the leak, Pluto must return to the town and find a way to get the residents to follow him to the dike leak.