Maggie and OA lead the search for an abducted former biological weapons chemist.

Maggie and OA are on a mission to find a couple who are behind a spree of violent armed robberies that resulted in the death of an off-duty police officer.

The abduction of a young woman leads the team back to a cold case from 18 years ago, which pushes Isobel to reconnect with her old partner Jake and take another shot at solving one of her first cases in the bureau.

After a mysterious bioweapon leaves two MTA workers dead and one injured, the team rushes to determine who is behind the attack and the location of their next target; Jubal’s past demons begin to surface.

When the director of a Brooklyn migrant center is abducted and held hostage along with his wife, the team must work quickly to meet the demands of their kidnapper. Also, Maggie picks Jessica's brain about motherhood.

The Somalian terrorist group behind the death of Agent Hobbs resurfaces, sending the team on a chase to take them down for good.