NCIS: New Orleans: Confluence

Don Lambert, an accountant who offered to testify against weapons trafficker Hugo Garza, dies after slipping away from the Federal Marshals tasked with keeping him safe ahead of the trial. In an attempt to ensure justice is done, Pride offers to personally escort a replacement witness - Lambert's former business partner - to the trial in Texas. However, the killer is still out there, and it's not long before Pride, Sonja and their witness face an ambush. Naval crime drama, starring Scott Bakula