Matt Dellapina

Danger closes in when the epic battle to bring the criminal organization HR to justice reaches new heights. And when the Machine suddenly gives out Reese's number, the POI team faces their greatest threat yet.

Finch receives 38 numbers at once from the Machine. He discovers they are connected to an unknown player who is inciting an all-out war between HR and the Russian mob.

When a key eyewitness in a murder trial flees out of fear of retaliation, Erin and Anthony spearhead their own two-person manhunt to find him and convince him to testify. Also, Garrett tries to convince Frank to attend the Police Union party, and Danny and Baez take a closer look at a suspicious convenience store robbery.

The team investigates when a judge is assassinated; Jo runs into a criminal from her past.

Dr. Bull creates winning strategies that tip the scales of justice in his clients' favor.

Tommy works to keep her officers in line when one of their own turns up dead; Mayor Buddy Gray and Deputy Mayor Doug Dudik are concerned about what damaging information Arturo Lopez, a recently arrested acquaintance of Buddy's, may have on him.