Now run by the wacky and unpredictable Cannonball Bullfrog, the Stagnant Pond music club in Croakopolis is struggling to survive the disappearance of its biggest star - Stinky Toad, the finest amphibian musician to have ever lived.
On the other side of the country, former touring musician Twigbobble the frog is valiantly attempting to keep Stinky Toad-s legendary music alive from his new home in a remote swamp. Short of listeners and low on inspiration, things are not going well for Twigbobble, until his guitar playing attracts a young frog named Gravelpants. Eager to learn this mysterious instrument, Gravelpants begins to take lessons from Twigbobble, who soon spots the young frog-s hidden musical talent.
Driven by his passion for the guitar, Gravelpants dreams of becoming a professional musician. One day, Twigbobble receives an invitation from his old friend Cannonball Bullfrog to join him in Croakopolis, and so he decides to bring Gravelpants along.
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