Since Darren Devlin and Marek Masters joined forces, there has only been one thing on their minds - taking down XSP, the secret organisation that transformed them into genetically-modified superhumans. Even with 21% monster Darren's incredible strength, and 19% alien Marek's super intelligence, XSP is more than a match for them. But what if there was another survivor of XSP's experiments? A tall, tough, athletic teen girl able to withstand sub-zero temperatures and track potential predators? A girl who's 17% sabre-tooth polar bear, and out for revenge.