Adventures of Superman (1952–1958)
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The Mysterious Cube 

Before a time limit expires, Superman must find a way to get to a criminal hiding in a giant cube made of incredibly strong material that even the Man of Steel cannot penetrate with his usual powers.


George Blair




Episode cast overview:
George Reeves ... Superman / Clark Kent
Jack Larson ... Jimmy Olsen
Noel Neill ... Lois Lane
John Hamilton ... Perry White
Robert Shayne ... Inspector Henderson
Everett Glass ... Prof. La Serne
Keith Richards ... Steve Barton
Ben Welden ... Jody Malone
Bruce Wendell Bruce Wendell ... Paul Barton
Joel Riordan Joel Riordan ... Acetylene Torch Operator
John Ayres John Ayres ... Navy Admiral


Inspector Henderson believes that Paul Barton, a criminal who's guilty of practically every crime known who disappeared nearly seven years ago, is hiding inside a cube-like structure which is made of some material that is impenetrable. He goes to the Planet to air his concern. It seems that by law if a person's been missing for seven years -- which period will be reached in 24 hours -- he is to be declared legally dead. And a dead man can't be arrested. So Clark turns into Superman and tries to get into the cube, but not even he can get in. So he goes to a scientist for help. Barton's brother, who's been keeping an eye on things for Barton, is worried that Superman might find a way in, so he grabs Lois and Jimmy. The scientist postulates that Superman might be able to alter his molecules so that he would be able to pass through anything solid; but he is warned that since the cube is made of an unknown material, he might not get out again. When Superman tries to get through, he learns ... Written by

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Did You Know?


The domed building where Superman visits Professor La Serne is the Griffth Observatory, in Griffith Park, Los Angeles. See more »


As Paul Barton is being arrested, he says, "My clock couldn't be that slow..." when if fact his clock was fast which is why he came out prematurely (thanks to Superman). See more »

User Reviews

A little on the lame side
12 September 2015 | by Talia_the_StoryMakerSee all my reviews

This episode has a lot in common with the previous one, Divide and Conquer - at the advice of a scientist, Superman mutilates the laws of physics to develop a new superpower. I enjoyed that episode due to the fact that the new superpower was actually really interesting and it seemed Superman was actually presented with a cool challenge, and the backdrop of the episode and overall plot line were decent and fairly creative. Here, however, there's nothing to make up for the lameness and suspension-of-disbelief testing. Other than the soft science fiction twist, this episode is just about as unremarkable and predictable as a Superman episode can be. There's nothing to justify the annoyance of the obviously already incredibly powerful Superman gaining a new power. When Superman encounters a problem which he can't solve with his powers, I want him to get creative, maybe do some investigative work, not pull something nonsensical out of thin air.

Another problem is that it was kinda hard for me to believe the alloy the cube was made out of could actually be that indestructible. Even just one stupid little throw-away line about the criminal finding a chunk of metal hit by mysterious space rays or about how some great scientist discovered it and his work was stolen or something would've made a big difference in terms of believability. Even a lame explanation would've been a hundred times better than just basically glancing over how this amazing cube came to be so amazing. What matters to me is that you follow the precedent of your own universe. Superman not being able to just punch through it was interesting, sure, but it was just hard to believe as it was presented.

Another issue my sister pointed out was that, while they repeatedly reiterated how the bad guy committed a million crimes, the way they didn't get into specifics made it hard to really hate him...which is a problem, considering that if Superman succeeds, he has a DEATH sentence waiting for him.

Also, I know this is a recurring problem in this series, but the criminals just made too many stupid decisions. Also, Lois and Jimmy kidnapped? Wow. Never seen that plot point happen before.

I guess there's nothing hideously objectionable about this episode, so I can't say it was completely horrible or anything. And I guess the villain's plan and Superman trying something new with his molecule structure was mildly interesting, even though both things were also extremely lame in some ways. So it's certainly tolerable watching, but it's far from great, to say the least. Sure, this series is always flawed, but it usually has a bit (or a lot) more redeeming value than this episode presents us with. I wouldn't say you shouldn't watch it or anything, though (if you're into this series). It was far from irredeemably bad, it just wasn't very good.

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Release Date:

24 February 1958 (USA) See more »

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1.33 : 1
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