Einsteins theory of special relativity says you can’t exceed light speed, so you need for that theory to be wrong.
It is possible that it is wrong, and wrong in a way that allows this to happen. That is not impossible. It may not be likely, but it is possible.
More than that, it gives you a way to look for a loophole. You need an enhanced theory of relativity which allows FTL travel, and then you can go out and test the theory to see if it’s correct.