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.

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.

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

As the team chases a deadly bomber who's terrorizing Manhattan, Jane uncovers a shattering secret from her youth.

Weller and his former FBI partner reunite for a dangerous undercover mission while Zapata interrogates a past foe.

The team must partner with an oddball conspiracy theorist to keep Crawford from acquiring a deadly weapon; Roman struggles to maintain his personal life with Blake while completing a series of secret missions.

Remi's schemes put her and Weller in danger, while Patterson and Rich solve a mysterious puzzle at the FBI.

A horrifying and vengeful villain threatens the FBI. Weller considers his priorities. Zapata and Reade try to navigate their living situation. Patterson explores a budding interest.

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.