Earth’s only hope of surviving an alien invasion is a group of over-the-hill commandos who were trained to defeat the extra-terrestrial enemies after a UFO crash-landed in Roswell, N.M., in 1947., Earth’s only hope of surviving an alien invasion is a group of over-the-hill commandos who were trained to defeat the extraterrestrial enemies after a UFO crash-landed in New Nexico in 1947., Earth’s only hope of surviving an alien invasion is a group of over-the-hill commandos who were trained to defeat the extraterrestrial enemies after a UFO crash-landed in Roswell, N.M., in 1947., When aliens invade, Earth’s only hope is a special operations team who were forced into retirement when they were considered too old to be effective.