The Titans face their final challenge as the true enemy is revealed. An alien armada is heading toward Earth, and Superboy must decide once and for all where his true allegiance lies. Will Starfire join forces with her evil sister, and what mysteries lurk far below the streets of Metropolis?

The Titans face their greatest challenge-their own powers! Nightwing, Donna Troy, Superboy, Starfire, Raven, Beast Boy, and Red Hood kick off a thrilling new case that will lead one of their own to question not only their place on the team, but their very existence.

Blackfire victorious! Earth has fallen to the queen of the Tamaraneans, with the Titans completely at her mercy…all except one. It’s a family reunion like no other as Starfire faces her sister with a surprising ally in tow. And all the time Black Zero wrestles with his new identity…Is he ready to leave being Superboy behind?

Black Zero strikes! Superboy has turned on the Titans as Tamaranean forces move to invade Earth. As Donna Troy falls to Conner’s newly restored powers, Raven tries desperately to reach the friend and ally they once knew.

Starfire takes on Lady Vic as more super-powered sleeper agents activate, displaying powers far beyond those of the Titans. Just who is behind the Cadmus experiment, and what is Blackfire planning as she brings Superboy to his knees?

Guest-Starring Hawk and Dove! The Titans uncover a plot against them. Someone has been stealing their powers, but who? And what has it got to do with Superboy? Guest-starring Hawk and Dove.

It's not easy being a teenage zombie girl when you keep losing parts. No more spells, glue or staples... Sally's dream is to become a real doctor to help her family in keeping it all together. The opportunity comes ashore when humans find their way to Titans Island. She's top of her class, but Sally understands when it's time to break the rules for a greater cause.