The team is tasked with protecting a serial killer on Hawaii Five-0. "Ho'opio 'Ia E Ka Noho Ali'i A Ka Ua (Made Prisoner by the Reign of the Rain)" is the 15th episode of the show's ninth season.
This is who you'll meet on the Hawaii Five-O pilot: Scott Caan as Detective Danny "Danno" Williams, Daniel Dae Kim as Chin Ho Kelly, Alex O'Loughlin as Detective Steve McGarrett, and Grace Park as Kono.