McCall races to save the team after they're put into extreme danger by her former CIA colleague Michelle Chambers while she discovers the truth behind the CIA withdrawal in Venezuela that led to the death of one of her friends.

After Mel is reunited with her brother, McCall helps him blow the whistle on his former unit's unethical practices before it's too late. Aunt Vi and Trish's relationship becomes fractured by Vi's need to protect McCall's true identity.