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.
Mario Casas
Mariela Garriga
Luis Zahera
Nora Navas
Christian Tappán
Cristina Umaña
Ricardo de Barreiro
Pablo Álvarez
Miguel Brocca
Roberto Mateos
Nieve de Medina
Dani de la Torre
Luisa Vides Galiano
David Villamil
Amanda Goldsmith
Juan Sánchez McDonell
Ander Jiménez