The inspiring story of the beginnings of the Sister Servants of Mary, a religious order that was founded in Madrid, Spain in 1851 by Fr. Miguel Martinez and Sister Maria Soledad who guided it in its development and expansion until her death in 1887.
| Directing | Pablo Moreno | Director |
| Writing | Pedro Delgado | Writer |
| Writing | Pablo Moreno | Writer |
| Production | Andrés Garrigó | Producer |
| Crew | Rubén D. Ortega | Cinematography |
| Production | Carlos Moreno | Executive Producer |
| Production | Josemaría Muñoz | Executive Producer |
| Sound | Oscar M. Leanizbarrutia | Music |
| Editing | María Esparcia | Editor |
| Production | Raúl Escudero | Casting |
| Production | Sergio Morán | Casting |
| Art | Aránzazu Gaspar | Art Direction |
| Costume & Make-Up | Patrocinio Azpeleta | Costume Design |
| Costume & Make-Up | Nahia Martín | Hairstylist |
| Costume & Make-Up | Margarela Prieto Barrios | Makeup Artist |
| Costume & Make-Up | Ignacio Pérez | Hairstylist |
| Production | Josemi Martín | Assistant Production Manager |
| Production | Francisco Pavón | Unit Production Manager |
| Production | Carmen Rodríguez | Assistant Production Manager |
| Directing | María Esparcia | First Assistant Director |
| Sound | Roberto Alonso | Sound |
| Sound | Roberto Alonso | Supervising Sound Editor |
| Sound | Lin Chang | Sound Mixer |
| Sound | Miriam Lisón | Sound Editor |
| Sound | Jaime Sotelo | Dialogue Editor |
| Production | Sergio Morán | Extras Casting |
| Costume & Make-Up | Dini Martín | Seamstress |
| Directing | Judit Sánchez | Script Supervisor |
| Production | Sofía Gea | Production Assistant |
| Production | Josemi Martín | Production Assistant |