A day of fun in the park is shortened when Cyborg suddenly freezes like a statue. His power cell is dying. And while the problem is easily fixed with a new battery, Cy is reminded of something he doesn't like to think about: He's not completely human. But before Cyborg can get home to fix his power cell, the Titans are called into action. The Amazing Mumbo is on a magical crime spree in the city--and there's no way Cyborg is going to let his friends fight alone. But during a wild junkyard battle, Cyborg's battery dies, and the Titans think Mumbo has run away with their friend. And while the Titans are searching the city for Mumbo, Cyborg is discovered by Fixit, a cybernetic hermit who finds things that are broken and repairs them. Cyborg gets the new power cell he needs, but there's just one problem: Fixit's not done fixing. When repairs are complete, will Cyborg be human at all?