There are two places Nicky Leandro calls home each reinforcing a particular facet of his personality: the red-blooded New Yorker and the L.A. transplant. Up until now each have done a fine job of compartmentalizing themselves. That is until Lily, an old flame, gets a hold of him right as he's about to head home for the holidays.

An eccentric professor takes four of his students to the mansion of the “Mad Hatter”, an urban legend driven insane by mercury poisoning and grief. He says that there’s nothing to worry about now: the strange, shambling “caretakers” that haunt the home are merely servants that have fallen to inbreeding, and the Hatter himself has been dead for years. But as the students start disappearing one by one, those that remain start to question if the professor’s experiment is truly scientific...and if the Hatter didn’t just succumb to his madness, but decided to spread it...

Marcus and Mike are forced to confront new threats, career changes, and midlife crises as they join the newly created elite team AMMO of the Miami police department to take down the ruthless Armando Armas, the vicious leader of a Miami drug cartel.