Plot summary
While Robin is following a lead on Slade, the Titans battle a new villain, Red X. Red X tries forming a partnership with Slade, but is given tasks to prove himself first. The Titans are shocked discover that Red X is actually Robin himself. He was masquerading to learn Slade's plans but Slade knew it was him the whole time. He taunts Robin about their similarities and Robin learns that he is just fighting a robot; the real Slade is still hidden. Robin tells Starfire that he didn't tell the Titans his plan because he had to get Slade to fall for the ruse. Starfire declares that he and Slade do share one thing in common – Slade did not trust Robin and Robin did not trust his friends. Villain(s): Slade, Red X
Credits
Adapted from Wikipedia contributors, Teen Titans season 1. HTML formatting and reference markers removed.