Daisuke Yuge works as a tour guide in Oahu, Hawaii and also studies astronomy. He meets Rui Fujishima at a cafe and falls in love with her at first sight, but Rui Fujishima suffers from memory loss due to a past accident.
Steve McGarrett returns home to Oahu, in order to find his father's killer. The governor offers him the chance to run his own task force (Five-0). Steve's team is joined by Chin Ho Kelly, Danny "Danno" Williams, and Kono Kalakaua.
