On Murtaugh’s first day on the job as interim captain, the wife of a popular businessman is abducted, and the squad finds a connection in the case to Riggs’s father, Nathan Riggs (recurring guest star REX LINN). Meanwhile, Riggs is left to grapple with his family and work.
The team discovers a terrifying rat infestation when a cargo ship carrying the bloodthirsty rodents washes up off the coast of Massachusetts. Also, unbeknownst to the rest of the team, Mitch reconnects with his terminally ill daughter in Boston as he prepares to make a trade with Reiden-Global to save her life.
