Mel engages in a tense family reunion when she and her disapproving sister race against the clock to save their brother Edison after he’s abducted. Also, as the team unravels the motivation behind Edison’s kidnapping, Mel grapples with the fallout of her argument with McCall about training Delilah.

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.