Synopsis

Murtaugh and Cole find themselves investigating the death of a fighter from the subterranean world of mixed martial arts, a case that prompts Murtaugh to confront his own diminished physical abilities. Separately, Trish grapples with a sense of professional dissatisfaction, contemplating a move into public service. And Cole and Erica's attempt at a relaxed relationship proves complicated when Maya reacts with resentment to the shifting dynamics within her family.