A serial killer is on the loose. With no clues, no witnesses and the bodies piling up, the local police call for the only people who can help. What the police don't know is just how full Thomas and M's plate already is. Time is running out. It's been ten months since A'loc showed up and challenged M to a duel to the death. M has ten months to prepare for his fight against A'loc while learning how to handle himself in a fight from Mai and discover the extent his mutant powers can go, but how can he do that when he can't even defeat her?