Two astronauts hear a strange noise outside the space station. In the USA, a group of teenagers on a trip discover a truck with blood and a body shape. They run into a military radio belonging to Hunter, a former astronaut. As they hide from Hunter, mysterious cloud formations appear worldwide. Meanwhile, the FBI and the army discuss Project Blue Book involving aliens. Romanovich, a former prisoner, shares his encounter with the "visitors" who cannot be fought. In the lake house, Rob realizes their car's battery was sabotaged, possibly by Hunter. Charlie reveals his former girlfriend's death, causing his strange behavior. Hunter witnesses a spacecraft emerging from storm clouds, leading to a blinding light and seizures. Romanovich claims the aliens know of his presence.