Adapted from 13Dice: Alien Invasion, the Action- Adventure Card Game series, based on the Night Force book series by R. R. WIlkinson:
 
Abducted by a species of aliens known as the Enu'kai, David Crozier is thrust into the battle between the worlds of Maroc and Mokar.  The embattled populace of Maroc had escaped the slavery of Mokar in order to seek a world away from tyranny.  Enroute, the Maroc branch of the Enu'kai had landed on Earth long before humans existed on Earth.  Some remains on Earth while the rest left to find their new home.
 
 When David learns that Earth is at the center of a three hundred millennia long war between the two worlds, the Terran decides to use the skills programmed into him by his captors to defend his homeworld of Earth from the Mokar invasion.