Nature Cat and his pals are ready to play Ronald in their five-player volleyball championship match of the world! They've been practicing all week and are so ready! There's only one problem: their fifth player, Herbert the Hermit Crab, is having a little shell trouble. His shell doesn't fit anymore and he can't play volleyball without one. Can Nature Cat and the gang find the perfect shell to protect Herbert's little crabby belly in time for the game? Or will they be forced to forfeit, making Ronald the champion?