Alien Attack (1976)

Alien Attack is a jerry-built feature film comprised of two episodes from the TV sci-fi series Space: 1999. Martin Landau stars as John Koenig, commander of Moonbase Alpha, a futuristic research colony. Landau's then-wife Barbara Bain co-stars as the base's chief medical officer Dr. Helena Russell, while Barry Morse is on hand as Prof. Victor Bergman. The first half of Alien Attack consists of the inaugural Space 1999 episode "Breakaway," wherein a huge atomic-waste explosion hurls the moon-and of course Moonbase Alpha-out of the Earth's orbit (thereby establishing the series' premise). This episode is arbitrarily coupled with #22 in the series, "War Games"; in this one, Koenig and Russell plead with warmongering aliens Anthony Valentine and Isla Blair to spare Alpha from destruction. ~ Hal Erickson, Rovi