In a world cloaked in ash and ruled by an immortal tyrant, a street thief named Vin discovers she possesses incredible magical abilities tied to metals. She's recruited by Kelsier, a charismatic rebel with the same powers, who plans the impossible: overthrowing the Lord Ruler's thousand-year empire. As Vin learns to master her powers and navigate noble society as a spy, she uncovers dark secrets about the empire's origins and her own mysterious past. Their heist against the empire becomes a fight for the very soul of their world.