1947: Fighter pilot Capt. Russell Keys is in the midst of a dogfight over France during World War II when his plane becomes enveloped in a mysterious blue light, saving him and his crew of nine men from certain death. However, none of them have any real memory of what truly happened or how they survived. After the war, Russell tries to return to normal, only to be troubled by bizarre nightmares and headaches. When he learns that every other crewmember on his mission has died mysteriously, he feels compelled to begin his own quest for answers. Meanwhile, the unscrupulous Capt. Owen Crawford leads a government search into what crashed in the desert near his army base in Roswell, New Mexico—and what may have escaped. In nearby Texas, a lonely mother is seduced by a mysterious stranger who is gentle, kind, and definitely not who he seems.