Luca Wexler has grown up in a world where superheroes are a staple of the nightly news. At seventeen years old, with eight years of hero training, a scrappy attitude, and a mountain of sass - he figures that's everything he needs to make it big as The Avalon Knight. (Behind his dad's back.) Even though his trainer keeps him on the streets of San Francisco to break up muggings or the occasional burglary, he somehow gets thrust into a supervillain crisis! (Okay, he might have accidentally-on-purpose thrust himself into it.) A genius hacker and social media celebrity - known only as The Gentleman - is behind a network of blackmail, extortion, exploitation, and whole lot of secret plans for The City. But seeing as how America's A-List superheroes are all MIA, Luca's the only one who can do anything about it. He's used to picking fights with bigger guys (he's smol but mighty), but as the situation turns deadly, Luca begins to get the feeling that he might (absolutely) be in over his head.