Leaving earth

Earth the planet we loved and were the superior organism over every other but soon we lost our power over creatures. We woke the beings who owned this world before us and now we must fight for our world from the godly monsters that attack us and try to wipe us out. We eventually had to evacuate to space with a small population of the world. For 20 years we roamed space looking for a new planet like Earth. But eventually, we return to earth to take our planet back.