Two Communist agents plot an attack on a dam in Spain.
| Directing | Ana Mariscal | Director |
| Writing | Agustín Valdivieso de Ceballos | Writer |
| Writing | Jaime Jimeno Conejo | Writer |
| Writing | Sebastián Almeida | Writer |
| Writing | Ana Mariscal | Writer |
| Sound | Juan Solano | Original Music Composer |
| Production | Ana Mariscal | Producer |
