Agent Zeta is a 2026 Spanish action spy film directed by Dani de la Torre and written by De la Torre, Oriol Paulo and Jordi Vallejo. Led by Mario Casas, the cast also features Mariela Garriga, Nora Navas, and Luis Zahera.

Plot

After the simultaneous killing of four former Spanish intelligence agents involved in the so-called 'Operación Ciénaga', Zeta is tasked by the CNI with tracking a surviving missing agent, joining forces with Colombian intelligence agent Alfa, going on to deal with a mysterious sixth member of the operation, who is codenamed Casiel.