Hellacious Acres: The Case of John Glass
Plot: John Glass, wakes up in a desolated barn from a long cryogenic slumber, to be informed that not only the planet has been devastated by a third world war, but reduced to little habitability by a subsequent alien invasion. He also learns that in order to reestablish a livable atmosphere for what's left of humanity, he'll have to go on a solitary mission to retrieve important codes dispersed in remote locations