In a world without Titans, Slade has taken control of everything: the streets, the city and the heart of his young apprentice.

A long-lost friend of the Titans returns with a vengeance. Slade orders Overload, Cinder block and Plasmus to launch a series of sinister strikes all over the city. Can our heroes stop Slade and his triad of monsters?

When Robin accidentally wrecks the R-Cycle while pursuing a nasty thug named Johnny Rancid, he winds up with his arm in a cast--and doubt in himself.

After a few weeks as a Teen Titan, Terra has everything she ever wanted: a nice home, good friends and even a little romance with Beast Boy. Everything seems perfect, but is it?

Robin, Cyborg and Beast Boy are transported to an alternate dimension where they along with four other heroes, and Gizmo, are invited to compete in "The Tournament of Heroes" to see who is the best hero. But is the tournament really what it sounds like, or is it hiding a more sinister agenda orchestrated by the tournament's host, the Master of Games

Terra returns to join the team.

One morning, Starfire finds out she has gained a large lump on her forehead. She is worried at what the others will think so she keeps her lump a secret, but as each day passes, she keeps getting more transformations. Eventually, once her secret is out, Starfire goes into space to find a new home that will accept her new appearance.

When Killer Moth threatens the city with his army of moths, Robin has no choice but to agree to his demand; He is forced to take his bratty and spoiled daughter Kitten to her junior prom much to Robin's dismay and Starfire's jealousy.

Raven doesn't fear anything, or that's at least what she wants the others to think. But when Beast Boy rents a scary film for the Titans to watch later in the night, strange things start to happen, and one by one, each of the Titans starts to disappear. But the main question the remaining Titans, including Raven, are wondering is; Who is behind all of this?

Cyborg becomes caught up in past memories of his time as a human and begins to feel frustrated by his robotic limitations.

The Titans meet a young girl named Terra who has the power to levitate Earth. Beast Boy falls madly in love with her and they offer her the chance to become a Teen Titan, but she is hiding a secret and only Slade knows the truth.

Feeling unwanted by the other Titans, Beast Boy heads into the city where he encounters a green dog and is then abducted by its owner who refuses to release him. The Titans also encounter this dog, but believe it to be Beast Boy who is unable to change back into his human form.

After Starfire falls through a time portal with a villain named Warp, she has an adventure alone in the future, and now she must find her friends' future selves and get back to her own time.