After the downfall of the Tech Men, Jonathan Rook, aka Stretch Monster, regained control of his company and his city. Now, with Dr. C in a coma, their hideout in ruins, and the full force of Rook Unlimited coming after them at every turn, the Flex Fighters are backed into a wall. Will Jake Armstrong be able to rally his team together to take down Rook and clear their names? Or will Rook and his Flexoids continue to keep control of Charter City?

In a twist of fate, James Lake Junior disappeared mere days after his tenth birthday. His body was never found. Five years later, Atlas is just a normal teenage boy, who just happens to work for a murderous secretive organization of shape-changing trolls. It's not so bad though. The healthcare is free at least. Until he finds a magical amulet. Suffice to say, things get...interesting. (Trollhunters AU, Jim=Atlas, Half changeling !Jim)