After a young girl is struck by a car in an illegal street race, McCall tracks down the person responsible for the hit-and-run. Meanwhile, Dee contemplates the idea of following in her mother's footsteps to join the armed forces.

After Dante's old training partner is taken hostage while working undercover in an illegal casino, McCall hires J.J., a former gambling addict, to assist with the mission. Meanwhile, Dee joins a peer counseling group and learns that some students have been bullying her on a social media page.