Lorna Cole is pregnant with Los Angeles Police Department Sergeant Martin Riggs' baby; they are not married, but both are thinking about it. LAPD Sergeant Roger Murtaugh's daughter Rianne, is also pregnant, though he is not told the child is with Detective Lee Butters since he did not want his daughter to marry a police officer. Due to issues with the department's insurance carrier over Riggs and Murtaugh's actions as sergeants, Captain Murphy promotes them to captains.