Code Lyoko and Teen Titans.

When Jeremy finally comes up with program to kill XANA, it kidnaps Odd while on Lyoko and places him on a replica as a last attempt to survive, the Skid is destroyed and XANA as infected Odd's devitalisation process so there's no way to rescue him.

Odd tells them to run the program to destroy XANA and leave him saying that the fate of the world is more important than him, finally they do as he says.

Odd wakes up in the DC universe with Franz Hopper. After working out what happened Franz Hopper uses his skills to set them up identities and Odd as his nephew, they also find out that Odd has retained his Lyoko abilities.

After two years Franz Hopper has become a famous inventor and the owner of Lyoko industries, Odd has also become a vigilantly called the Shadow since that's all people ever see of him.

Odd and Franz are in Jump city on a business meeting when they see Starfire flying over head, Odd goes and changes in to his shadow attire and run off to join the battle.

Odd's costume is like his Lyoko suit but in darker shades of purple, on his chest instead of a picture of Kiwi is the picture of a attacking cat, on his wrists are gauntlets that can modify his laser arrows, he wears a scarf wrapped around the lower part of his face and his neck with the ends trailing off, he wears his hair down and it's held back by aviator goggles which he uses when he flies his overboard, he also has enhanced senses, claws and more strength than the average human. He has his own utility belt which contains a reel of super strong and flexible metal wire for tying up enemies and other uses, a transmitter for his overboard, an AI pocket computer, tracing transmitters keyed into his computer and a small oxygen tank for under water and when he's high in the atmosphere.

Odd arrives atop a building and sees Robin, Beastboy and Cyborg battling Starfire, he joins in until Raven stops them. Once Starfire leaves he is about to leave on the overboard when the alien ship arrives, he then joins the others in finding Starfire and battling the aliens. The teens save Jump city and Shadow decides to join the Teen Titans as well. He spends time at the tower but takes most of the away missions, also being the nephew of a famous inventor means he has to show up some time in his secret identity with Franz. Eventually Franz Hopper over time makes a new super computer but without XANA so he can make a virtual clone of Odd so he no longer has to show up with him and miss out on missions and Franz also works on a return to the past.