Fearing a broken package, Max and Gark find themselves on an unexpected journey through the murky depths of a sewer to return it and end up at war with each other.

Gark has ordered a wormhole but Max jumps into it in order to avoid Anton the dog and Gark follows. As they float through space (with Max as a giant head) he swaps his powers for a bravery module to make Max be brave when he gets back to Earth.

Max explains to Gark about how mean Santa is because he never got the toy he asked for.