K-911 is a 1999 American buddy cop comedy film, acting as a direct-sequel to K-9 and the third installment in the K-9 film series. Detective Michael Dooley and his German Shepherd partner, Jerry Lee, are compelled to collaborate with a new police team led by Sergeant Welles and her Dobermann Zeus. A mysterious sharpshooter prompts the two teams to work together, leading to an ultimate cooperation.