After an unidentified flying object crashes onto a ranch near Roswell, New Mexico, in 1947, ranch owner Ulysses T. Boone has his hands full trying to deal with the press, government authorities, his own family, and Jake, a mysterious ranch hand who has been living on the ranch for the past 10 years.
It turns out this is not the first time T. Boone has had a close encounter. In fact, Jake is a space alien waiting for a ride home.