The body of a murdered federal agent is found, and Five-O is contacted by the government agency that sent him to Hawaii, which also sends another agent, Glen Fallon, to Hawaii to assist ... See full summary »



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Episode cast overview, first billed only:
Herman Wedemeyer ...
Glen Fallon
Dr. Sonya Hansen
Dr. Karl Rathman
James Ferrier ...
Dr. Conrad
John Hunt ...
Dr. Basil Kent (as John A. Hunt)
Wayne Oxford ...
Dr. Abicoff
Lani Kim ...
Dr. Lopaka
Ann Ramos ...
Gun Club Manager
Don Pomes ...
Harry Williams ...
Arnold Dixon
Vic Leon ...
James Walden
Norman Perry ...
Hendrick (as Norman J. Perry)


The body of a murdered federal agent is found, and Five-O is contacted by the government agency that sent him to Hawaii, which also sends another agent, Glen Fallon, to Hawaii to assist Five-O. McGarrett and Five-O discover that the murdered man was investigating the possibility of a "sleeper" agent within the March Foundation, a think-tank funded by the U.S. government. The evidence uncovered by McGarrett and Fallon begins to suggest that the Foundation's chief, Dr. Rathman, is the "sleeper" that the murdered agent was looking for. Written by aldanoli

Plot Summary | Add Synopsis


Crime | Drama | Mystery





Release Date:

28 September 1978 (USA)  »

Company Credits

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Technical Specs


Sound Mix:


Aspect Ratio:

1.33 : 1
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Did You Know?


When inspecting Rathman's boat, Danno discovers something in the topside cabinet. He calls McGarrett up from below to see what he found. You can clearly see that the cabinet doors are still closed. The camera cuts to a close-up and the doors are wide open revealing the contents. See more »


References God's Little Acre (1958) See more »

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User Reviews

An extremely weak beginning to Season 11.
29 July 2013 | by (Bradenton, Florida) – See all my reviews

Season 11 was originally intended as the final season for "Hawaii Five-O". After all, it was, by that time, the longest running police show on TV. And, by then, the plots were starting to become a bit more uneven and even occasionally shoddy. This premier episode, "The Sleeper", is ample proof that things were starting to slip.

The show is about a possible sleeper agent on a top secret government project. The authorities already suspected this and the agent sent to investigate has been murdered. So far, this has the makings of a good episode. While having the state police investigating such matters never made any sense, most of these sort of shows were very exciting and worth seeing. However, there ended the interesting portion of the show. What followed was simply shoddy. First, it turned out that the crimes were committed as a result of hypnosis--a thoroughly stupid plot twist. Hypnosis cannot make you kill people or do evil--it it could, I sure would have tried this when I got my training in clinical hypnosis!! Second, and more serious, the crime was solved magically--with McGarrett and one of the suspects both independently coming up with the solution with no real evidence!! How they simply knew what was going on seemed to come from out of no where...which it did! Overall, a very sub-par episode--one that had too many plot holes to take very seriously.

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