Traveling to Cleanix to investigate why floating space junk has engulfed MouseStar 1, Geronimo finds that the planet's alien inhabitants are extremely wasteful and face the threat of rebellion by the robots they've thrown in the trash.

Explains the existence of God.

MouseStar 1 is surrounded by floating space junk! It's yucky -- and dangerous. It's coming from a nearby planet, Cleanix. Geronimo Stiltonix goes to visit, and discovers that the aliens there are very wasteful. Even worse, robots that they've thrown in the trash have started to rebel! Can the spacemice restore harmony before the robots take over?

More space, more scrap, more videotapes... In the space months following the Pants War, countless shows came and went, but none of them garnered a fraction of the viewership of Pants Team Pink. More popular than ever, the team has sold as much merchandise as the next hundred shows combined. But not all is as pink as it seems. Practical jokes are on the rise, and knock-off merch clogs the spaceways as dark forces conspire to challenge the reigning disorder. Meanwhile, Adam Jones finds himself right back where he started - broke, starving, and hungover. Scrap has grown scarce, and worse, nothing good is on. Feeding his addictions as he drifts aimlessly through space and life, it's up to Grandpa and a familiar feline to drag Adam out of his space funk. The black gold is up for grabs as our pretend heroes suit up for the first annual Pants Con, but not even the most screen accurate of costumes can prepare them for the enemy lurking behind the scenes.