Murtaugh delves deep into the psyche of a former navy seal who is wanted for criminal activity, and draws parallels between him and his partner, Riggs, who also served in the military. Riggs’ connection to the suspect threatens to interfere with the case, but it also forces him to open up to Murtaugh.
A string of burglaries hits close to home for Murtaugh when one occurs in his own neighborhood, and it gets just as personal for Riggs when another break-in ends in a casualty. Meanwhile, Roger Junior connects with an old friend who might be twisted up in some criminal action of his own.
Riggs and Murtaugh investigate a violent case involving a drug cartel, two killings, theft, and Murtaugh’s old T.O., Ned Brower, Trish and Murtaugh struggle to find time along.
A noise complaint at a boxer’s home leads Riggs and Murtaugh to a case involving illegal gun runners and Riggs becomes personally invested in the outcome when one of their targets reminds him of his late wife. Meanwhile, Trish worries about Murtaugh’s health.
A slightly unhinged former Navy SEAL lands a job as a police officer in Los Angeles where he’s partnered with a veteran detective trying to keep maintain a low stress level in his life.