When Rocky and Bullwinkle damage the largest birdbath in the world, they set out on a musical adventure. And Fearless Leader attempts to become a musical superstar so he can amass a legion of devoted super fans who will obey his every command.

Rocky, Bullwinkle, Boris and Natasha are kidnapped by a super-fan named Francis, the eight-year-old heir to the Puffy Platypus Pizza franchise, to play a private concert for his birthday.