There is this one little thing that I don't quite get at the end of Avengers: Endgame.

After Thanos was defeated, Captain took the stones back to where they were originally taken to "correct" the timeline. However we see that Cap has the 6 stones in their "Raw" form, but that is not how all of them were taken.

For example in 1970 Tony didn't take the Space Stone but the Tesseract, so I assume they extracted the Space Stone in the present (by breaking the Tesseract like Thanos in the Infinity War movie?).

So how could Cap return the stone to the rightful place when he actually needed to return the Tesseract? Or am I missing something here...

The same goes for the Mind Stone, which was inside the Gem on the Staff Loki had in the first Avengers movie.

  • 11
    It helps if you don't think about plot logic too much!
    – Paulie_D
    Apr 26, 2019 at 16:06
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    @Paulie_D I really enjoyed the movie and I think its great, also thoughts like this don't ruin it for me one bit, but still I can't help to wonder :)
    – Bojan B
    Apr 26, 2019 at 16:14
  • same about eather
    – J M
    Apr 28, 2019 at 4:19
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    Also, touching the Tesseract sent Red Skull hurdling through space to Vormir, and the power stone nearly destroyed Quill... Apr 29, 2019 at 15:42
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    @FabianRöling - In Infinity war it was necessary to get the stone from the Tesseract, Thanos did that by crushing/destroying the Cube. In Endgame we do not know how the space stone was extracted from the Tesseract - we only know that Tony and Cap took the Tesseract from 1970 and Cap had the space stone when he went to return the stones - to be accurate though he should have returned the Tesseract not just the stone... So that is my question, how can he do that, did he create a new Tesseract?
    – Bojan B
    May 3, 2019 at 19:38

1 Answer 1


The Tesseract is a casing for the Space Stone. The Ancient One says that the Infinity Stones must be returned to keep the timelines stable, not that they have to be returned exactly as they were taken. As long as the Stone itself is in the right time, it doesn't matter for the stability of the universe that the Space Stone doesn't go back in the Tesseract.

The Ancient One: I'm sorry, I can't help you, Bruce. If I give up the time stone to help your reality, I'm dooming my own.

Bruce Banner: With all due respect, I'm not sure that science really supports that.

The Ancient One: The Infinity Stones create what you experience as the flow of time. Remove one stone and that flow splits. Now, this may benefit your reality but my new one, not so much. In this new branched reality, without our chief weapon against the forces of darkness, our world will be over run. Millions will suffer. So, tell me Doctor, can your science prevent all that?

Bruce Banner: No, but we can erase it. Because once we are done with the stones, we can return each one to it's own time line at the moment it was taken. So, chronologically, in that reality, they never left.

From IMDB.

I guess they decided that was someone else's problem.

  • I think that you flipped "Bruce Banner" and "The Ancient One" in your quote block.
    – Raj
    May 6, 2019 at 18:52
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    @Raj Oops seems like it's wrong on IMDB. May 6, 2019 at 18:55
  • 1
    Definitely Natalie Portman's problem when they inject her with a rock May 7, 2019 at 11:15

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