Based on a novel, Slow Horses is a spy thriller based in the UK that starts with a bang and keeps you interested all the way through.
Gary Oldman leads a a quality cast of outcast spy agents through a maze of confusion, politics, blackmail, betrayal and much more. The "Slow Horses" team is an offshoot of the British version of the FBI, essentially a group of really good agents that have be relegated to the B team.
This show has all that you want in a crime drama. There is confusion, lies, death, creative thinking and fun teamwork amongst the agents to try to save the day and their personal careers too.