Muzzle

A seasoned LAPD K9 officer whose partner Ace dies in a traumatic operation. Grief fuels his obsession to uncover the truth behind Ace’s death while questioning the line between duty and vengeance.

Jake’s loyal German Shepherd partner, trained to sniff out cocaine and detect danger. Ace’s death becomes the catalyst that drives Jake into a dangerous, pursuit-filled path to uncover the truth behind the drugs and the people responsible.

A traumatized German Shepherd adopted by Jake who requires patient, unconventional training. Her evolving trust with Jake leads them into the heart of the cartel investigation, and she bears the scars of the fight, including a missing leg at the end.

Jake’s partner, later his wife, who provides emotional grounding and support. Their relationship anchors Jake’s life beyond the force, helping him navigate grief while maintaining a sense of normalcy.

K9 trainer who guides Jake on Socks’ rehabilitation, emphasizing understanding a dog's trauma and nonverbal cues. He serves as a bridge between professional duty and human empathy.

Jake’s ally in the investigation, delivering crucial information about the drug network and Socks’ past. She warns of cartel danger and reinforces the importance of the squad.

A police informant connected to the drug trade who helps trace the cartel’s operations. His information reveals the dangerous reach of the network and its impact on the city.

A street informant who provides clues about the cartel and Socks’ past, helping Jake piece together the broader network.

Owner of the company behind fentanyl production, a pivotal figure in the cartel’s supply chain. The investigation gradually implicates corporate crime in the drug network.

Former police officer and Socks’ previous owner, who turned to the cartel for help after his daughter fell ill. His choices illuminate Socks’ past and the brutal costs of the drug trade.