Against Murtaugh's advice, Cole reaches out to Tom Barnes to help with a case that hits close to home, putting Murtaugh and Cole's partnership to the test. Meanwhile, Trish prepares to announce her campaign for District Attorney.
McGee reluctantly visits his high school after the unique computer password he used as a teenager is linked to the murder of a department of defense contractor. The case escalates when an intruder breaks into McGee’s home in an attempt to steal his archaic high school computer.
Pride and the team reunite with conspiracy journalist Oliver Crane after the source for his latest vigilante story is murdered. Also, Hannah’s former partner, Liam Somers, surprises her in New Orleans and shares a shocking revelation about an old case.