Manchester, 2046. Chloe Dark lives in a world destroyed by a disease that turns people into monsters - it could happen to anyone, even her.

The arrival of the Purity Officer brings a new twist as he has his own plans for Chloe who is recovering in hospital.

Still trying to cope with her future Chloe withdraws from the world, just going through the motions and trying to make sense of her life.

Chloe is on the run but it gives her a new freedom to explore her abilities and look for her friend.

Chloe's dedicated but she doesn't listen. Missing a vital piece of data she continues to pursue the people who kidnapped her friend only to come face to face with her nemesis.

In the cataclysmic final episode Chloe joins forces to storm the castle and rescue not just her friend but the others being held with her.