BEYOND THE EARTH

Aliens from exoplanet within our galaxy come to the earth. That planet is a strange planet, there is no birth, no death and no effect of age.
Whenever they come here there space ship gets damage. There is no chance of going back , only the hope is if someone from there come to take them.
They found the earth is very different from there home planet.
Before living them a case filed against them.
They could not go until they prove themselves innocent.
What happens.