In the aftermath of an asteroid that hits Earth in 1998, the story begins in the year 2006, following the adventures of members of the North American Air Defense Agency, Base One. Since all military resources must be turned to the task of providing aid and food to the survivors, the North American Air Defense Agency stands alone to guard against airborne terrorist attacks. While flying a reconnaissance mission, Skip Scott is forced down and captured by the terrorist group, Bushmaster. There, he meets the love of his life, Lieutenant Ahana Cohen, fighter pilot for his captors. But he also discovers something else, and it's not what he expected at all.