In the series premiere, “In the Shadow of the Blades,” set in the dark and smoky streets of 1920s Birmingham, we are introduced to the enigmatic Shelby family, led by the cunning Thomas Shelby. As the Shelby brothers navigate their criminal empire, a shocking event forces them to confront a powerful new adversary. Episode 1 sets the stage for a season filled with intrigue, violence, and a fight for control over the city's underworld.