Voyage to the Bottom of the Sea

No Way Back

Season 4, Ep 26, Aired 3/31/68
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  • Episode Description
  • While Nelson is at his institute, a sudden power overload destroys the Seaview with all hands. Mr. Pem (time traveller from the episode "A Time to Die") approaches Nelson with an offer to go back in time and prevent the incident. Nelson agrees, only to find his ship and crew transported to the eighteenth century, where Mr. Pem plans to alter the outcome of the Revolutionary War.

  • Cast & Crew
  • William Welch

  • William Beckley

    Major John Andre

  • Barry Atwater

    Benedict Arnold

  • Henry Jones

    Mr. Pem

  • Richard Basehart

    Admiral Nelson

  • Fan Reviews (1)
  • A nice, memorable finale to America's longest running science fiction series of the 1960's. Harldy deep, but rarely silly, the series closes in style.

    By ssosmcin, Apr 12, 2010

  • Trivia & Quotes
  • Quotes (1)

    • Crane: It won't work. If we try to find the explosion, future history will be changed. It just isn't possible. Mr. Pem: Of course it's possible. I don't know why everbody doggedly insists it's not possible. My dear young man, the future can be changed simply by changing the past.

    Notes (1)

    • Barry Atwater appeared in the first season episode "The Buccaneer".

    Trivia (1)

    • Somehow, Nelson can use Pem's device extremely well. At the end of the episode, Nelson presses a button and travels through time, arriving at the Institute. Realizing he needs to be elsewhere, Nelson presses another button and arrives on Seaview, presumably at the same time (the thing must be great in traffic jams). By the time Nelson ejects the bomb, there are now two Admiral Nelsons. Did the Nelson at the institute vanish? If so, then Pem never met up with him and started the whole thing. If the Seaview Nelson vanished, then the sub returned home, gathered Nelson and went back out (or he took the flying sub).

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