1. Riggs learns that the death of his wife was murder, and not the result of a traffic accident. Lethal Weapon 4 Lethal Weapon Lethal Weapon 2 Lethal Weapon 3

2. Jack Travis shoots Leo Getz on the rink at an L.A. Kings hockey game, while the game is in progress. Lethal Weapon 4 Lethal Weapon Lethal Weapon 3 Lethal Weapon 2

3. Both Sgt. Riggs and Sgt. Murtaugh are promoted to the rank of captain. Lethal Weapon 3 Lethal Weapon Lethal Weapon 4 Lethal Weapon 2

4. Martin Riggs meets with drug dealers in a Christmas tree lot. Lethal Weapon Lethal Weapon 3 Lethal Weapon 2 Lethal Weapon 4

5. Amanda Hunsaker's apparent suicide leap is determined to be a homicide. Lethal Weapon 2 Lethal Weapon Lethal Weapon 3 Lethal Weapon 4

6. Rianne Murtaugh makes her television debut on a commercial. Lethal Weapon Lethal Weapon 2 Lethal Weapon 3 Lethal Weapon 4

7. Sergeant Lorna Cole makes her first appearance in the series. Lethal Weapon Lethal Weapon 4 Lethal Weapon 2 Lethal Weapon 3

8. Riggs and Murtaugh work with Detective Lee Butters. Lethal Weapon Lethal Weapon3 Lethal Weapon 2 Lethal Weapon 4

9. Riggs attempts to disarm a car bomb in a parking garage. Lethal Weapon 4 Lethal Weapon Lethal Weapon 3 Lethal Weapon 2

10. Riggs fires a shot into Arjen Rudd's office fish tank. Lethal Weapon Lethal Weapon 4 Lethal Weapon 3 Lethal Weapon 2