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