If you yell at us for spoiling it, we’re going to zap you with a Cosmic Cube.
We expect you’ve already seen it if you’re going to watch this.
The following post contains major SPOILERS for Captain Marvel.
There’s no bigger shock in Captain Marvel than when we finally get to Mar-Vell’s ship and discover that the “light-speed engine” that she was supposedly developing was drawing power from … the Tesseract!