Jane tries to pick up the pieces after the explosive finale in Iceland. She gets a strange message from an unknown ally that allows her to mount a rescue mission to free Rich Dotcom from a CIA black-site... but she'll need the help from her old rival Sho Akhtar.
Jane and the team reach out to Patterson's father in the hope of gaining access to a high-level conference in Finland where they hope to bring Matthew Weitz to their side.
When an op goes bad, the team must deal with a proverbial monster in their house before it can take them down one by one. Meanwhile, Director Weitz is forced into a tense game of psychological chess as Madeline Burke attempts to assess his loyalty and root out a potential mole at the FBI.
In order to stop a terrorist group from procuring a deadly chemical weapon, the team must remember key details from their first days at the FBI. Meanwhile, Weller worries after he gets scary news about the health of his daughter.
When Jane is shot and Weller is kidnapped, the team must fight to save both of their lives while maintaining the secrecy of their hidden base. Meanwhile, Weller is haunted by some dark ghosts from the past.
When Ice Cream, the Icelandic fixer, returns to collect his debt, the team is forced into a life and death race around the world to solve a series of puzzles and recover the infamous stolen Gardner paintings.
In an effort to stop Madeline from shipping two planes full of ZIP to the US, the team splits up into a high-stakes undercover mission where they intercept Madeline's son. Meanwhile, Madeline interrogates an old ally to get information on Kurt and the team.
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.
As Ivy races to retrieve the devastating stash of ZIP bombs, the remaining members of the team must rely on the help of a longtime thorn in their side, the very unstable genius Kathy Gustafson.
