The team investigates when young Carly Hunter disappears while walking home from school one day. While processing evidence found at the scene, Warner realises that the little girl has leukemia, and they need to get her home as soon as possible to begin treatment. Despite the ransom drop going wrong, the detectives are able to find the little girl thanks to evidence O'Halloran finds at the scene, but as she tells her story to Stabler and her mother, it soon becomes clear that her kidnapper is someone very close to home. Stabler and Warner end up becoming hostages when the kidnapper approaches Jake Hunter directly.

A manhunt ensues when Victor Paul Gitano, a recently released sex offender, kidnaps two children after killing the rest of their family. Benson and Stabler pursue Gitano only to find their own relationship challenged as both experience opportunities where they put their personal relationship ahead of their job. After having her throat slashed, Benson requests for a new partner when she hears what Stabler has to say about their relationship and their job.