Rick Veitch's The One (Rick Veitch's The One #2)

Waking from the Big Sleep, our post-nuclear family has a mysterious houseguest called The One. But when his ancient nemesis appears, they find themselves ensnared in a cosmic conflict of unimaginable proportions. Meanwhile, with all atomic weapons disabled by The Double, the American military unveils their long-secret super-soldier project... and then the Soviet military fast-tracks its own program based on untested Nazi Übermensch technology.