"The Line" was once a thriving city neighborhood where the chances were all on the road. But those days are long gone . Now this area is rubbed between white supremacists and black thugs . John Blacksad device in the middle of a battle of the Aryan " Arctic Nation " against the black residents of The Line , just because he is looking for a kidnapped girl . The tracks lead him to the top of the social area and into an assembly, which has doomed much like the Ku Klux Clan .