Jon Collin Barclay

Danny and Baez work with Texas Ranger Waylon Gates (Lyle Lovett) when they are put on a case to find the Lone Star Killer.

It's Christmas Eve and Danny tells Charlie a bedtime story about a recent Five-0 case involving bad Santas and a holiday miracle. Real-life military veterans Jason Redman, Steven Jackel, Kathryn Taylor-Smith and J. Eddie Martinez guest star as veterans who help McGarrett with the case.

Reese and Finch become trapped in a hospital which has just become ground zero for a deadly viral outbreak. Also, Samaritan’s newest recruit has second thoughts, and Shaw continues to struggle with reality.

A rescued victim from Stabler's past goes missing. Bell recovers in the hospital while Jet, Reyes and Bashir are all questioned by IAB. Joe Jr. shows off his new career path.

As Bell and the squad come up with a plan to bring the Westbrook case officially into their jurisdiction, Chief Bonner struggles with unanswered questions about her past and her beloved town. Stabler learns the outcome of his IAB investigation.

When several bodies are found in a seaside town, Stabler navigates the politics and secrets of the close-knit community to find a potential serial killer.