Lethal Weapon

Meet the new partners in crime in the series premiere.

When Riggs & Murtaugh respond to a noise complaint, they are drawn into a major case involving illegal gun runners and advanced military technology that involves Riggs personally.

Riggs & Murtaugh follow a violent case involving a drug cartel, theft, two killings and, unfortunately, Murtaugh's old Training Officer, leaving Murtaugh with a difficult decision.

A string of neighborhood burglaries hits close to home for Murtaugh, and it gets personal for Riggs when another break-in ends in a casualty.

Murtaugh sees a side of Riggs' military past.

When Riggs & Murtaugh investigate the high-profile murder of a young model, they uncover a secret behind one of L.A.'s wealthiest families -- that may have ties to Miranda Riggs.

As Riggs & Murtaugh examine the murder of one of L.A.'s fashion expeditors, they follow a trail of evidence that leads them to a dangerous underground investigation by the D.E.A.

When a casino heist takes a deadly turn, Riggs looks after the only credible witness, an eight-year-old boy. Meanwhile, Murtaugh pulls some dangerous stunts on a motorcycle.

Riggs & Murtaugh go up against one of their own when the killing of a Texas Ranger leads them to possible corruption. The case is complicated by a dark secret from Avery's past.

The holiday season weighs heavily on Riggs, who flashes back to past Christmases with his late wife, Miranda.

After investigating the murder of a "designer drug" dealer, Riggs and Murtaugh find themselves in a violent turf war between a new generation of drug dealers and a Koreatown gang.

Murtaugh experiences some frightening chest pains after he and Riggs become embroiled in a notorious car theft ring and the lead defense attorney is none other than Trish Murtaugh.

While investigating a series of violent crimes connected to a church, Riggs faces a moral dilemma of his own when the one-year anniversary of Miranda's death sends him to a new low

A brutal car crash reveals that Cahill is the target of a murderous stalker, causing Riggs and Murtaugh to turn the tables and start asking her questions for a change.

Riggs & Murtaugh are forced to work with DEA agent Karen Palmer (HILARIE BURTON) again, to protect Leo Getz (THOMAS LENNON), an ambulance-chasing attorney linked to the Cartel.

While Murtaugh considers a big change in his professional life, Riggs contemplates an even bigger shift in his personal life, as he spends more time with Karen Palmer.

As Riggs' attachment to Karen Palmer deepens, so do his impulsive actions, further worrying Captain Avery and Ronnie Delgado (TONY PLANA).

In the season one finale, Riggs makes a shocking discovery about Miranda's death that leads him back to the cartel in a desperate search for answers.