Planet Earth is in danger from assorted villains who want to destroy the environment for their own nefarious purposes! Far off in the Horsehead Nebula, a group of shapeshifting aliens known as World Watchers assign planets for their Watchers to protect. A purple alien, Widget, is an apprentice assigned with the job of protecting Earth. Along for the ride is his intelligent sidekick, Mega Brain.

Planet Earth is in danger from assorted villains who want to destroy the environment for their own nefarious purposes! Far off in the Horsehead Nebula, a group of shapeshifting aliens known as World Watchers assign planets for their Watchers to protect. A purple alien, Widget, is an apprentice assigned with the job of protecting Earth. Along for the ride is his intelligent sidekick, Mega Brain.