In the final season (Part 5), Sergio is severely injured during a confrontation with the police. Despite his efforts to escape and evade capture, he ultimately succumbs to his injuries. The scene shows Sergio bleeding profusely and, in a symbolic gesture, handing over the control of the heist to his partner, Palermo (Rodrigo de la Serna).
Sergio Marquina, played by Álvaro Morte, is the main protagonist and mastermind behind the heist. He's a highly intelligent and charismatic individual who plans the entire operation with meticulous detail. Throughout the series, Sergio's character is developed, revealing a complex and multi-faceted personality.