Alien Save the Litle Sister

When a planet Javi to desctruction because of old age. The entire population of the plane ready to find a new planet to be visited. But unlucky, Undas family approached a bunch of asteroids.Accident was unavoidable, on of them should die, one of them should be saved. Esposed cockpit burning asteroid collison, they must die but not for their two children. Entering the earths athmosphere, their plane was split from an impact stones. They are not together anymore.Can his brother find his sister ali...