Dark ominous clouds blow in from the east, bringing Thunder and Lightning with them--two forces of nature made flesh in the form of costumed superteens. The stormy brothers aren't evil; they're just looking for a good time.

The Titans awake to find themselves captured as prisoners of Mad Mod, a madcap bad guy in a psychedelic suit. Mad Mod has decided to teach the teens a lesson, creating a massive mind-bending school full of optical illusions and brain-washing hypno-screens. Will the Titans be "re-educated" and lose their minds in the process?

When Cyborg beats a robot named Atlas in an online video game, he challenges Cyborg to a real, physical fight; a fight Cyborg loses due to Atlas having lesser limits on his strength. Atlas then kidnaps Robin, Starfire, Raven, and Beast Boy as his prize and challenges Cyborg to a rematch where his friends’ lives are at stake.

Ever since the Titans' final confrontation with Slade, Robin has been haunted by one question: Is Slade really gone? And after Cinderblock escapes from jail, Robin finally gets his answer when he sees Slade. Robin pursues Slade, fiercely determined to stop his nemesis once and for all.