The seventh volume of the much-beloved comic series based on the much-beloved TV show Invader ZIM features tales of aliens, gym teachers, and cute, fluffy, radioactive woodland creatures ZIM finds himself imprisoned with all his worst enemies in a special two-part storyline Meanwhile, ZIM's other worst enemy, Dib, attempts to foil him in both a Physical Fitness competition and an Invention Fair And in a special one-shot story by cartoonist KC Green, Dib learns that there are some birds you just don't mess with. Collects issues #31-#35.