Katie feels unappreciated and ditches her family for a day, leaving Viv in charge of the household. Viv takes this as an opportunity to see if she would be a good mother.
Amy and Jonah help Mateo's toy drive in an attempt to make him look good ahead of his immigration hearing. Elsewhere, Jerry and Sandra ask Glenn to officiate their wedding.
The team hunt for a missing teenager who is thought to have been recruited by a terrorist group. Plus, there's a shock in store for Deeks.