Benson struggles to balance work and her new role of foster mother; when Amaro arrests a young sex worker with connections to Noah's mother, his undercover work sets off a dangerous chain of events.
A deceased man is spotted overboard during a Coast Guard and NCIS training exercise at sea, and Gibbs winds up on a vessel commandeered by pirates.
Jax, Clay and the boys deliver the first shipment of weapons to the Galindo cartel, while Gemma forms an unlikely alliance in Charming.
Tired that his father has once again found a way to pit Gob and him against each other, Michael decides to teach his father a lesson.
In the season finale, Castle struggles to keep Beckett safe as she hunts down the man who shot her.
