The team sets out on an international mission to stop an attack from spreading. Madeline attempts to turn the tables as internal conflict threatens relationships within the team.

Dominic begins to enact Madeline's cataclysmic scheme as the team rushes to stop him. Tensions rise as past secrets begin to unravel. Chaske Spencer and Mary Elizabeth Mastrantonio guest star.

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.

The team discovers an international conspiracy when a deadly weapon is stolen; Jane supports Weller when someone from his past dredges up painful memories.

Bill Nye reprises his role as Patterson's father in a case that pits the team against a pestiferous foe. Zapata goes rogue with an old friend as Jane and Weller search for the hooded figure.

The team races against the clock to save one of their own after Dominic enacts a nightmarish scheme in a bid for Madeline’s freedom. Tensions soar with Madeline as she makes her own demands.