In 5020 the Earth's poles shifted 90° causing the earth to rotate upside down.
From rotating horizontally to vertically, this is caused by the earth's magnetic poles that were once in the north and south of the earth moving to the west and east of the earth.
This caused a great catastrophe for mankind.
How is the continuation of humans on earth?
Can they survive or will they perish along with the changing of the earth.
And here's Rewind.