The case of a vanished troubled tween boy is probed by the Priority Homicide squad. Brenda's evidence has her wondering if the boy is a victim, a runaway or even a killer, due to his violent past.

Tony has long admired some of Spain's top chefs; however, Spain culture and cuisine has more to offer than just Ferran Adria.

Nancy learns that the tunnel is being used for more than drugs. Esteban puts her fears to rest as well as her nagging headache with a strong remedy. Celia's family stages an intervention in order to force her into rehab. Andy finds Maria and takes her across the border to an awaiting Doug. Silas babysits while Shane explores new territory with his two girlfriends.

The tension between Lo, Lauren and Audrina continues and soon things reach boiling point.

A woman is brutally murdered and her son is abducted; the squad works frantically to find the missing boy; Bobby surprises the squad and his family by going under cover; Ham continues to struggle with his personal loss.

To prevent the resurrection of every vampire that has ever lived, The Middleman and Wendy search for a possessed puppet that once belonged to Vlad the Impaler. Meanwhile, Noser pulls a disappearing act.

In an attempt to prove to Abby that he's a good person, Don accompanies her on a field trip with the kids from her school. However, his plan goes horribly wrong...