Sgt. Jack Ramsey was an undercover detective with the Los Angeles Police Department who found himself teamed with an extremely sexy but very green partner named J.Z. Kane. Together they formed a friendship and trust--completely platonically--that led to them capturing many of L.A.`s criminals. Lt. Kipling was their boss. "Dog and cat" is a slang term used by police officers to denote a male-female partnership.