In a universe where parallel worlds exist, a rogue Multiverse Authority agent named Gabriel Yulaw discovers that by killing his other versions in alternate realities, he can absorb their power and become a being known as "The One." Each time he eliminates a version of himself, the strength and intelligence he gains increases exponentially. Yulaw's quest leaves him nearly unstoppable, but the more he absorbs, the more he craves power, leading him on a relentless hunt across multiple worlds. His ultimate goal is to become the last version of himself, gaining god-like omnipotence. However, his actions disrupt the balance of the multiverse, drawing the attention of the Multiverse Authority, an agency tasked with maintaining inter-dimensional order.

On one of the parallel Earths, a police officer named Gabe Law leads a normal life, unaware of his other selves or the danger approaching him. His life is thrown into chaos when Yulaw arrives on his world, targeting him as the last remaining version before achieving ultimate power. The Multiverse Authority, led by agents Roedecker and Funsch, steps in to protect Gabe, attempting to stop Yulaw's rampage. As Gabe becomes embroiled in this inter-dimensional conflict, he must come to terms with the reality of his existence and the threat to his life, while also dealing with the complexities of his own identity and the connection he shares with his would-be killer.