The researchers have determined that the aliens have been to Earth before and that human beings are, in fact, their descendants. Further examination of the video footage reveals that the industrial and military sites are "Designated Landing Areas", suggesting that the aliens are preparing to return in the near future. Bancroft arrives at the base and, after being chased, comes across Harry Forbes who shows him the alien craft. Just as it is revealed that a translation indicates the aliens are about to return, the plane crashes into Hangar 18.