As an American drug smuggler, who faces death by hanging if arrested by Singapore authorities, escapes McGarrett's grip quite literally by sliding along a tram car cable, then fleeing to one of the tiny islands that surround the main island. A Malay drug lord, stiffed by the American, wants his scalp and kidnaps his wife to force him to come out into the open. The drug lord permits McGarrett to board his boat and to take the wife (who has been forced to ingest cocaine and will soon die if she doesn't get medical help) to a hospital in return for her husband facing death by a bullet. The American agrees, but secretly instructs his goon squad to create a diversion while he pulls off the ultimate double-cross.
Did You Know?
The title refers to the Chinese calender's 12 year cycle of animals which include the horse. The Year of the Horse ran from 7 Feb 1978 to 27 Jan 1979. By the time the episode was broadcast the year had ended. The title is also a double entendre, as horse is a euphemism for heroin. See more
When McGarrett enters Club Tropicalla he passes a handwritten sign, "The Queen's Pupu Counter". More commonly used for Hawaiian pupu trays than for Asian cuisine in general, this sign appears to be in an actual Honolulu club rather than one in Singapore. See more