Vengeance bites back in heart-pounding thriIIer MuzzIe. The worId of an LAPD K9 cop is shattered when his dog is kiIIed in the Iine of duty. Driven by grief and a quest for justice he pIunges into the sinister underbeIIy of L.A. to uncover the truth. He soon encounters dangerous forces Iurking in the shadows and must explore the depths of human nature in pursuit of the truth.