Bishop comes to McCall, Harry and Mel for help when a terrorist from his past uncovers the identity of his adult son, a young man Bishop has kept secret for decades to safeguard him from his intelligence work. Also, Aunt Vi becomes nostalgic about a past romantic relationship when she receives a surprise visitor

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.