Four Spanish ex-intelligence officers are assassinated simultaneously worldwide. The CNI discovers all participated in the covert "Operation Ciénaga" decades ago in Colombia. Zeta, the CNI's best operative, must hunt and protect the sole survivor, facing his deadliest global mission yet. Top Colombian agent Alfa will join Zeta, seemingly knowing more about "Ciénaga"'s secrets than him.

What would you choose: be a little rich now, or wait ten years and be filthy rich? Could you wait this long? Why? And most importantly, could you come to terms with your life partner? The protagonists will have to choose between the possibility of opting for 100,000 euros at the present time or obtaining a million euros after ten years... Adaptation of the work by Jordi Vallejo.

Spanish television series