Originally assigned to the Kwun Tong Police Station, Yat-tsau’s superior transfers him to the K-9 unit to work with police dogs, hoping that the strict training would better shape his character.

When some of the officers go too far, it triggers an FBI investigation that reveals the Gun Trace Task Force as one of the most corrupt police squads ... why do good cops go bad?

A K9 leads his new partner into the woods. They're on the hunt for a driver the Fayette County Sheriff's Office says ran off during a traffic stop and was wanted for multiple alleged felonies.