Aaron Eckhart & His Police Dog in 'Muzzle: City of Wolves' Full Trailer"You messed with the cartel's business... Now they're coming for you." RLJE Films has revealed the official trailer for a movie called Muzzle: City of Wolves, a surprise sequel to the movie Muzzle from 2023. Muzzle: City of Wolves is a direct sequel - introducing a new dog named Argos as his partner. Muzzle 2: City of Wolves is directed by American producer / filmmaker John Stalberg Jr., also director of the movies High School, Crypto, Bad Hombres, and Muzzle previously. The screenplay is written by Jacob Michael King, based on a story by John Stalberg Jr. Based on the characters created by Carlyle Eubank.