2002 - 2011
Spooks (known as MI-5 in North America) follows the personal and professional lives of a team of MI5 officers working for British domestic intelligence. The series depicts their high-stakes operations to protect national security while exploring the personal costs of their secretive work. Each season typically features ongoing story arcs involving terrorism, espionage, and political conspiracy, while individual episodes showcase specific missions. The show is known for its realistic portrayal of intelligence work, complex moral dilemmas, and willingness to kill off major characters unexpectedly.