Over 500 million years ago there lived the dinosaurs, some dinosaurs were nice others needed to get food so they hunted their own species. When all of the other dinosaurs were running and hiding they never knew they should of hid from a lot bigger target coming from a place that is out of this world.
The dinosaurs never knew it but a huge asteroid was coming to hit earth some dinosaurs noticed other didn't. A couple of months pasted and the asteroid was getting ready to hit.
All of the dinosaurs were running they could not escape though the asteroid was the size of a planet. All of a sudden a huge crash shakes the whole planet. The dinosaurs look up and see another asteroid collided into it and they were all saved.