Thirty years after a blackmail scheme, Amparo uncovers a darker side to the Expo. With Richi and Robledo's help, she digs through old files, piecing together clues to solve the long-buried mystery.
As the explosion harms an unintended victim, Richi and Amparo track down a key player from the Expo, while Robledo teams up with a forensic investigator.
As a deadly assassin's revenge reaches its peak, Palacios tries to buy his safety. The race to stop the killer takes a dizzying turn, escalating the tension and danger for all involved.
