Episode Title:There's No Place like Home.Episode Description:Ace begins to lose energy without a reliable power source to recharge. Mark's class visit Conestoga Hills' observatory, where Chuck tells the urban legend of the Radioactive Guy, a scientist who went mad after being exposed to the radioactive waves of a comet. Mark's cousin Ashley meets Ace, mistaking him for the Radioactive Guy. Ace continues to lose power but comes to Ashley's rescue when she wanders in the carnival alone. Mark takes Ace to the observatory where he is able to recharge, chasing off the villains. Ace decides to live in the observatory, naming it the Thunder Tower. Ashley promises to keep Ace a secret.