When a school shooting breaks out during the investigation of a tattoo, the team splits up to take down the shooter. Mayfair copes with some issues from her past.

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.

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.

After Jane discovers that Sandstorm is gearing up for an imminent attack, she risks everything to send a secret SOS to her FBI team.