Nas and Weller navigate their new dynamic as co-leaders during the team's hunt for a museum gala assassin, who turns out 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.

Rich Dotcom returns to the FBI when he needs help with a pressing issue.

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.

After a set of tattoos produces multiple leads, the team divides into unlikely pairings 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.