Lethal Weapon 3 is the third movie in the Lethal Weapon Series. It stars Mel Gibson, Danny Glover, and Joe Pesci. The film plot revolves around Roger Murtaugh, who is facing retirement in seven days, and Martin Riggs, who find out an ex-cop is selling weapons illegally and are intending to use those guns to take out the Los Angeles Police Department. The duo reluctantly team up with another cop named Lorna to stop this ex-cop.