Matt Dellapina

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 TAC team finds itself in a tense and unprecedented situation when Bull faces off against Marissa and her new boss in court, following her departure from the company. Also, Taylor's professional life works against her during her custody battle with her ex-husband.

Bull and Chunk aim to prove that their client, a woman on trial for murder, committed the crime due to a lack of behavioral control caused by a brain tumor. Also, Taylor's professional and personal worlds come crashing down when she's suspected by the FBI for cybercrimes, and her ex-husband blindsides her regarding their son.

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.

The POI team’s war with HR nears a boiling point when 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 the crime organization and the Russian mob. Meanwhile, a window into Carter’s past is seen through flashbacks with her son’s father.