Reese and Finch are confused when the Machine names a six-month-old child, Leila Smith, as the latest POI. Reese and Finch turn into overly protective parents—with an arsenal at their disposal—as they investigate her origins.

Finch and Reese take on the case of Jordan Hester, who appears to be living a double life with a very small online footprint.

Reese ventures into suburbia to locate the next person of interest, Graham Wyler , whose past returns to haunt him. Reese “proposes” to Zoe Morgan for the mission to help blend into suburban life.

Reese and Finch work undercover in a hotel to protect a maid named Mira who escaped the war in Kosovo. Mira, who is hiding her true identity, is being followed by a hit squad. She refuses to cooperate with a reporter investigating a Serbian general’s war crimes.

The team witness Leona Wainwright being killed by a suicide bomber. She worked for the government, managing security clearances; Finch deduces from cell phone information that Vigilance killed her. Their next number, prosecutor Matthew Reed , sends Reese and Shaw to a high school reunion in Westchester.

Finch receives 38 numbers, all members of HR. Carter intercepts a drug delivery of the Russian mob, causing leader Peter Yogorov to suspect HR. Carter starts a war between HR and the Russians by firing sniper shots at HR leader Alonzo Quinn, who blames the Russians.

While Shaw is abducted by Root, Finch and Reese get the number of Timothy Sloan , an estate investigator. Finch goes undercover as Sloan’s assistant while Reese continues investigating Shaw’s whereabouts.