William F Nolan Logan s Run Trilogy

Logan's world. . . With the computer system destroyed, Earth has reverted to savagery. Scattered tribes now rule a charred world. Scavengers, who prowl the broken cities. Surviving corps of the elite killers, led by a psychotic ex-Sandman. Sadistic bands of gypsy riders who kill and plunder.
When tragedy strikes, his loved ones, Logan sets out on a death-haunted vengeance trail across a ravaged world that leads to a startling confrontation and ultimate destruction.

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