A spy-themed series, but devoid of all the charm and atmosphere often found in this kind of projects. The authors offer the audience to plunge into an exciting and fascinating narrative story about tough agents, who, as it turns out, often get into ridiculous situations. In such an ironic and satirical setting, the authors of the script manage to create a quite sane spy story that will not leave anyone indifferent. The project \"Slow Horses\" will show how important MI5 outcasts are for the security of Great Britain in spite of their status.