After escaping from CIA custody, the team recaptures Jane and convinces her to become a triple-agent within her old terrorist organization where she unlocks some major secrets from her past, while recent betrayals from both sides threaten to tear her and the team apart for good.
The team races to stop a corrupt DEA agent from selling stinger missiles to a drug cartel as Weller fights to keep everyone together under the increasing pressures of Jane's rift with the others and the uncomfortable addition of Nas as co-leader.
Weller and the team must race the clock to stop a series of escalating New York City bombings, while Jane is forced to go on an assassination mission to prove her loyalty... or suffer the consequences.
Nas and Weller navigate their new dynamic as co-leaders during the team's hunt for a museum gala assassin, who turns out to be harboring a dark secret; Jane starts to see a softer side of her old organization.
After a prominent politician is almost killed during a rally, Weller and the team must work with U.S. Marshal Allie Knight to take down a mob leader.
While Weller and Nas chase a fugitive whistleblower in Bulgaria, Jane goes on a Sandstorm mission with Roman. Reade and Zapata must deal with an urgent matter.
Rich Dotcom returns to the FBI when he needs help with a pressing issue.
When Weller and Jane go missing during an undercover operation, the rest of the team must interrogate two criminals who hold the key to finding them. AUSA Weitz returns with a vendetta against the team.
After Jane discovers that Sandstorm is gearing up for an imminent attack, she risks everything to send a secret SOS to her FBI team.
Patterson is missing... and a newly amnesiac Roman is on the loose. Jane and Weller must race Shepherd - and the clock - to find them before it's too late.
After one of the world's most-wanted terrorists surfaces in New York for unknown reasons, the team must partner with the CIA to stop a deadly bombing.
When an unusual tattoo leads back to Roman, the team must decide whether to send him into the field... to go undercover with a dangerous biker gang.
The team gets a major break in the Sandstorm case when they discover Shepherd's true identity... and a decades-old connection between her and Weller.
A tattoo points the team toward a powerful collegiate secret society, but they can't infiltrate it without the help of one of its alumni... Rich Dotcom.
After a set of tattoos produces multiple leads, the team divides into unlikely pairings - Weller and Roman; Jane and Zapata; Patterson and Reade - to chase down a deadly underworld courier.
With Nas's help, Weller and Jane finally come face-to-face with Nas's inside source within Sandstorm, and square off with an old foe.
Jane and her new flame Oliver find themselves in a dangerous situation that exposes the secrets they've both been keeping. Uncertain if they can trust each other, the couple must stay alive while Weller and the team race to save them.
Under investigation by an old rival, the team struggles to defend itself. Meanwhile, a tattoo leads them to a mysterious death at a foster home.
Jane and Weller go undercover on a high-stakes scavenger hunt run by powerful hackers. Shepherd journeys to Thailand to procure a dangerous weapon.
Zapata's transgressions catch up to her, sending her to jail alongside a potentially powerful Sandstorm asset named Devon. Weller and the team must go to exceptional lengths to help Zapata out.
The team finally cracks a member of Sandstorm, leading to a huge breakthrough in uncovering Phase Two.
As the FBI copes with a tragedy, Weller finds himself at the center of a surprising event. Jane faces an uncertain future.