In a world where superheroes and villains have been real for decades, Arthur, an unassuming accountant with no superpowers, becomes embroiled in the middle of the battle between good and evil. When he realizes that his city is owned by a global supervillain who was long thought to be dead, he struggles to uncover the conspiracy. As he becomes obsessed with the conspiracy, most people think he's crazy. One person who believes Arthur is a mysterious new ally, The Tick, who is a bizarre blue superhero who may just be a figment of Arthur's imagination.