Nate proudly drops by to present his sassy wife, Las Vegas croupier Ruth Westen to everyone. Grudgingly he agrees to interrupt his honeymoon to look after his mother, who ...

Mason Gilroy, another well-connected psychopath and the master-killer who eliminated Diego, expresses an interest in hiring him. Sam 'welcomes' old mate Mack by punching ...

Harry Langford enlists McGarrett and Danny's help to track down a teenage British royal who has run away while under his protection; Grover, Tani and Junior work a 25-yea ...

Local big shot crime boss Jimmy Okada gets hit in a rather spectacular fashion, and Five-O's old friend from MI5, Harry Langford, lends a hand on the case. ...

Five-0 must work with rogue MI-6 agent Harry Langford to find a terrorist planning to cause nuclear reactors across Europe to meltdown. Also, McGarrett and Danny ask reti ...