Unit 7 has a tough mission: to clean the most dangerous drug trafficking networks out of the city of Seville, and bring an end to the corrosive power that has taken hold of the streets. A detail of four, led by Angel, a young officer aspiring to detective, and Rafael, a violent, arrogant, yet efficient cop are on the beat. But Unit 7's modus operandi is slipping outside the bounds of law through their use of violence, coercion, lies and half-truths....