Crime Boss Investigator is a gritty, animated crime action drama centered around the titular protagonist, CBI, and his relentless pursuit of the vicious crime syndicates controlling his city. But not to save it, to settle a score two decades in the making. 

He leaves dozens dead in his wake, criminals and the innocent alike, yet his reputation as a hero supersedes his sins among fans. 

One such fan named Sadie, a former Marine turned crime fighter inspired by CBI himself, forces her way into his world as a partner. But the hero she looked up to isn't what she expected, and she's quickly confronted with the tragic reality of his identity... and the question of whether she can pull him back before there's nothing left to save.