Richard Gallagher

In the second season finale, Reese and Finch team up with some surprising allies in a race to save The Machine from a familiar, nefarious entity; and the true nature of Finch's relationship with former partner Nathan Ingram is revealed. Meanwhile, Carter tries to bring Beecher's murderer to justice and finds herself at odds with the criminal organization HR.

Roman and Burgess discover the corpse of a young boy who was reported missing; Burgess talks to Ruzek about Roman's suspicious behavior; Bunny plans to make a statement that could impact Voight's career.

The recruits go through a training drill to test their stress levels; Alex attempts to gain information and get close to Owen; in the future, the terrorists make a demand that could possibly end the stand-off.