Trama

McGarrett receives a phone call from a woman in Singapore saying that she can witness against a local mobster. McGarret immediately flies to Singapore to retrieve her. The mobster in Hawaii, knowing that the girl can finger him, has a contract put out on both McGarrett and the girl. Unable to get to the airport, they board a ship bound for the Philippines, where their lives are threatened again. As Chin Ho arrives in Manila, another hit man is waiting for them.—Doug Leighton

At a club in Singapore, a fight breaks out and a man is stabbed to death by Victor, while Nicole Wylie flees the club. She calls McGarrett back in Hawaii and asks him to come to Singapore to take her back, she is afraid that a mob holdlum Ravasco has sent Victor to kill her and prevent her from being a witness against Ravasco.

McGarrett leaves immediately and upon arriving in Singapore, meets Inspector Fong. The Singapore police give McGarrett a car and driver and he goes to the address listed for Nicole, only to be handed a message to meet her at another club in Singapore. There he discusses the case with her and the need to get back to Hawaii. They leave out the back door only to be confronted by Fong who has been bought off by Ravasco. McGarrett uses the police driver he was assigned as a shield and takes the life of Fong. Now he and Nicole are fugatives and he must get out of Singapore through other means. They board a cargo ship headed to the Phillipines under a pseudonym married couple the Carvers only to find out Ravasco has a plant on the ship to kill them both.

McGarrett is attacked but manages to dispose of the killer overboard as they continue on to the Philipines. He gets a message out to the Five-O team of his whereabouts and arrival plans and Chin Ho flies to the Phillipines to meet him. When the ship makes port, Chin asks about the Carvers and is told they disappeared at another stop but left a message where to meet. Also in the Phillipines is Victor, who overhears and arranges his own greeting party to kill McGarrett and Nicole. At a shrine where the meet takes place, Victor arrives first and his group start shooting. McGarrett returns fire as Chin and the Phillipine police arrive to seal the area saving McGarrett.

The episode ends back in Hawaii as McGarrett and Nicole are at the airport. The trial is over, Ravasco was found guilty, and Nicole is headed back to the mainland. She and McGarrett embrace and kiss, he wishes her the best and tells her to come back, Hawaii is his beat and he will always be there.