Part 1 of theBen 10: Dark Apocalypse Series.
A year after The Summer Vacation that changed Ben Tennyson's life, A disaster befell the world. An explosion shook the planet, and cities across all countries around the globe became simultaneously sanctuaries and Prisons, each one becoming vastly different societies due to their immense isolation from each other.
Bellwood City due to the Cataclysmic event called "The Fissure" that took place during the catastrophe that razed the planet, was split in half, with both halves being separated by miles. Now, 2 years after Ben found the Omnitrix, he lives alone in the City of Sin, a city ruled by gangs, mercenaries, enhanced super powered humans, cybernetics, and a cyberpunk hell on Earth. Having lost all hope in the aspirations of a kid hero, Ben lives every day depressed and dying a little inside each day.. until a chance encounter forces him to Go Alien- one last time.
At 10 years old, Ben Tennyson sacrifices himself to save his cousin and ends up trapped in the Null Void. With the Omnitrix, he will have to survive, grow stronger... and become ruthless. But when he returns, how will his loved ones react to the change?