Two cops must learn to work together to catch the world's most-wanted drug dealer, whose face has never been revealed.
Episode 1
In Salvador de Bahía, Agent Cardona hopes Santo's mistress might reveal the narco's whereabouts. In Madrid, Inspector Millán tracks down a suspect.
Episode 2
After being rescued in Madrid, Cardona tries to remember what happened to him and Bárbara while they were kidnapped. Millán investigates the Norwegians.
Episode 3
As Cardona recalls more about the terrifying rituals he endured while held hostage, Millán investigates one of Santo's men who was operating in Spain.
Episode 4
In the past, Cardona journeys to the depths of hell while working undercover in the cartel. In the present, he ends up in Millán's crosshairs.
Episode 5
Cardona and Bárbara try to evade police custody while Millán navigates an internal affairs investigation into his past conduct.
Episode 6
As Millán and Cardona finally close in on Santo's location, they draw everyone around them — including their loved ones — into danger.
