Lethal Weapon tells the story of classic cop duo Riggs and Murtaugh, as they work a crime-ridden beat in modern-day Los Angeles. Grief-stricken after the loss of his young wife and unborn child, ex-Navy SEAL-turned-detective Martin Riggs moves to California to "start over" at the LAPD. He's paired up with Roger Murtaugh, who's just coming back to the job after a near-fatal heart attack.