Okay, so... I'll just drop it on you and see how you like it.
It works off the premise that the quickest path between point A and point B is a straight line. Anyone who's read "A Wrinkle in Time," though, would know that by bending Timespace, you can make the distance even shorter.
The question remains, however, of what happened to that straight line. Well, it became a parabola. It sank into a curve, still connected between the two points but no longer the quickest way between them. So now there are two paths between Point A and Point B, one of which is shorter than the other.
Now let's send some things along these lines, shall we? Let's send alien spaceships, 'cuz why the scud not?
One alien spaceship reaches Point B first. It's the one that went along the easy path. The second spaceship reaches Point B an hour afterwards. That's kinda how traveling works.
Now, however, let's throw a spin in it. The spin. The Spin Force! Let's say that these two alien spaceships have some sort of engine thingy that contains particles that have been entangled, and now have a spin bond. Using some universal magicky mumbo-jumbo, we have bonded these two spaceships. So when you send them from point A to point B again, they reach at the same time: kind of like a clock hand. Despite the fact that the tip of the hour minute hand is farther away from the center than the bottom of the minute hand, they both reach a 90-degree angle at 12:00 at the same time. That sort of thing.
I'm not entirey sure what to do with this. I'm thinking that, by bonding two particles with Spin and sending them along these paths, they'll meet again at point B and release a crap ton of energy that they gathered from Gravitational forces. In other words, you get power plants by bending spacetime!
I explained that badly. Hope you liked it anyways.