What happens when the Team falls through a portal to the world of Justice League Unlimited? (I don't own the cover)

None of the Titans knew Robin, Kid Flash and Speedy went so back. None of the Titans knew they were such good friends. None of the Titans knew that they had a bunch of home videos from when they were kids. None of the Titans knew they were about to watch previously mentioned home videos. None of the Titans knew that Robin, Kid Flash and Speedy were so different than what they seemed. None of the Titans knew they were each wearing their own mask.

A lot of you voted on a one shot becoming an actual story. The updates will be extremely slow, but I hope this pleases you. This is a Marvel and DC crossover. I do not own any of the Marvel OR DC characters. Only the plot. Brace yourself for a lot of random shenanigans.