One moment, they were there.

The next, they were gone.

The ponies of Equestria find themselves in Earth's ancient past, as dinosaurs. While Spike and Twilight's human friends attempt to find out what happened and how to retrieve the ponies, they are in a struggle for survival, some in groups, some alone.

Will anypony ever make it back home?

Author's Note: If anyone wants to try to make a cover-art image for this story, go for it. I'll evaluate and decide if I want it to be the cover-art.