A nuclear war and its aftermath kills billions.

The remaining government decides only some survivors will be worthy to inherit the new earth.

Forced to flee their home, Oliver and Olivia must quickly find shelter in the last remaining city. After some time laying low, the twins stumble upon an underground rebel group and get swept up in the fight. Yet when their friends are taken, they must decide whether to hide again or continue fighting for a world where all survivors can inherit the new earth.