The Last Portal Convergence

"Every hour is a world. Every choice rewrites survival."

In a post-apocalyptic world devastated by nuclear war, a lone survivor discovers an unstable energy source capable of powering a temporal portal. After traveling to the past, he confronts an earlier version of himself and attempts to alter the decisions that led to humanity's collapse. As hidden patterns emerge and long-buried secrets are revealed, he realizes that survival depends not on escaping time, but on choosing which future deserves to exist.