Long long time after today, Sun will go to its destination finally. When that time comes, earth is no longer suitable for livings for any creatures any longer, including human beings.
In order to rescue earth and all the creatures on earth, the union government plans and implements the plan to move earth to another galaxy system to find a suitable place for all creatures on earth to survive.
This fiction starts with the un-usual situations happened all over earth. Under the leadership of union government, different contingent plans are made and implemented with all the resources from human beings to save earth.
This fiction applies scientific imaginations to create processes of pushing moon away, direction change of earth, migration of earth in universe, arriving at new solar system, close contact of aliens and finally, surviving of earth.