Duran and his team of the fifth group are secret agents missioned by Inspector Peña to find and capture a gang of dangerous criminals who are planning a major hit.

Armando Moreno
as Pablo Durán

Manuel Gas
as Inspector Peña

Miguel Fleta
as Carlos Martín

José Marco
as Pedro Lofón

Carolina Jiménez
as María Lofón

Barta Barri
as Barrier, Jefe de la Banda

Francisco Piquer
as Manuel

Arsenio Freignac
as Morales

Fernando Vallejo
as Don Francisco

Pau Garsaball
as