The investigation of a young model's murder leads Riggs and Murtaugh to one of L.A.'s wealthiest families and Riggs is jolted when an old friend of his wife's is also linked to the case. Murtaugh is shocked to discover that his daughter is sending racy photos to her new boyfriend.

Riggs and Murtaugh look into the murder of one of L.A.'s fashion expeditors and discover an underground DEA operation. With Trish and the kids away, Murtaugh goes on a 'bender'. Riggs has all-too-real dreams of Miranda.

The whole precinct’s holiday celebrations are cut short when they’re called to examine a ruthless homicide.