With college in sight, Sheldon is determined to ride his bike without training wheels and has Missy teach him. Meanwhile, Mary and George argue over parenting styles.
Torres and Bishop go undercover as a criminal couple available for hire, during an NCIS sting operation tracking illegal drug-running out of the Norfolk civilian marina.
Kyle grows concerned that Frank’s rogue tactics will put a kidnapped girl’s life at even greater risk after a former member of Muammar Gaddafi’s Amazonian Guard becomes involved in the deal and ups the stakes for the girl’s return.