The community is throwing a fiesta and a mariachi band is supposed to show up and play. Unfortunately, the band can't make it and Mr Beakman announces they will have to cancel the party. Everyone is glum until Muffin picks up a pair of maracas and shakes them. That gives Samuel an idea! The kids decide to find instruments and make their own 3rd and Bird mariachi band.

Elliot the worm decides that he'd like to join the Budgies, but when Samuel and Rudy bring him to a meeting, Mr Beakman points out that the Budgie Code says a Budgie is a bird who never gives up. Elliot, being a worm, doesn't qualify. The group must appeal to the Grand Budgie to change the rules and accept all creatures that never give up into the Budgies.