Journey to the Center of Isabella

 is the thirty-first episode of Hollywood World.

Summary
While acting, Isabella accidently swallows a shrunken submarine, with Katie, Sadie, May, Bridgette, Lindsay, Owen, Numbuh Four, Ash, Brock and Ben are in, so they have to find a way out. Also, they find 6 chipmunks in the submarine.

Characters
Isabella Katie Sadie May Bridgette Lindsay Owen Numbuh Four Ash Brock Ben Alvin (Debut) Simon (Debut) Theodore (Debut) Brittany (Debut) Eleanor (Debut) Jeanette (Debut)