When a CEO is killed by a targeted explosion inside his penthouse, the team must work to figure out how someone accessed the highly secure building. Their task is further complicated when they discover the crime may be the work of an artificial intelligence program. Meanwhile, Maggie pumps the brakes on her personal life.

After Jubal narrowly escapes a calculated assault on a secret FBI office, the team discovers a rogue terrorist group has infiltrated the FBI. Unsure of who to trust, the team must work in the shadows to unmask the culprits threatening the sanctity of the New York field office.