Thomas Pitz, one of Gumby's classmates, has been truant for several days in a row. One day, the teacher is attacked by an Astrobot. Suddenly, it all makes sense; Thomas Pitz has taken over the Astrobot collective and he's using them to try and destroy school! Gumby, Prickle, Goo, and Professor Kapp capture an Astrobot ship and use it to return to the Astrobot home planet. Gumby makes quick work of Tom's Astrobot guards with his fire extinguisher and drags the little Darth Vader wannabe back home without a shred of dignity to get a firm spanking for his rampant megalomaniacing.