Weller searches for the truth within a heartbreaking and confounding assertion. And while Jane reaches out to a former suspect for help with Oscar, the rest of the team struggle to help a friend.
The team scrambles to get ahead of Madeline and Ivy as they close in on the bunker's location, but someone on the inside is feeding Madeline information. As her plan takes shape, the team may be forced to take desperate measures.
With the surviving members of the team captured and held in FBI custody, Madeline and Ivy are in the final stages of their plan, but a few unlikely allies come out from the woodwork, trying to stop her before it's too late.
Jane and Weller go undercover as a top-notch assassin couple in order to protect some lethal info. Meanwhile, David tries to repair his relationship with Patterson; and Carter and Mayfair disagree about how to deal with a menacing person.