This time, I recommend two American TV series about spies, definitely suspenseful and extremely intriguing. Burn Notice火线警告 has already finished its 7 seasons and Berlin Station柏林谍影 is rather new. Nevertheless, you would be in awe of their resourcefulness, and finally understand the phrase "Be all you can be". Also, for people who intend to improve their listening skills, Burn Notice is my first choice. Hope you enjoy them!