When a street robber claims that he stole King Tutankhamen's mask for fun, McGarrett suspects there is more to the case than simple robbery.
A local mobster's plans to acquire a nightclub include murdering its mainland mob partner.
James Darren, Yvonne Elliman, Ross Martin, Nehemiah Persoff, Antony Ponzini, Richard Dimitri and Brian Tochi guest stars.
Millicent Shand (Mildred Natwick) returns and claims that her niece's (Diana Scarwid) husband has faked his own death in order to get his hands on $500,000.
An Asian dies on a flight from Bangkok to Honolulu when a bag of heroin in her stomach bursts; the trail leads McGarrett and Danny to a Singapore drug ring.