MI5 personnel are caught up in a traffic jam in London while escorting the CIA's most wanted terrorist to an arranged CIA handover point, when he is suddenly rescued by armed men on motorbikes. Harry Pearce, the head of Counter-Terrorism at MI5 is blamed for the terrorist escaping. Especially as Harry disappeared shortly after the incident. An ex-agent, Will Holloway, and protégé of Harry's is recalled by MI5 to assist in finding and bringing Harry in. However Harry has disappeared for a reason. Certain that there is a traitor in a senior position in MI5, he enlists the somewhat reluctant Will to help him in uncovering the rat or rats concerned. Written by Woodland Outlaw.

Country: UK
Language: English
Release Date: 4 December 2015 (USA)
Also Known As: MI-5
Filming Locations: Shepperton Studios, Shepperton, Surrey, England, UK 

While this is not Ethan Hunt (not sure why you'd advertise this so that people might confuse this with Mission Impossible, but then again, it's all about the money a movie makes or how many will recognize something, even if it's not there), this is a very well done low key spy movie, with some very good acting.

The budget was obviously not that big, but you get your fair share of action scenes and car chases. Everything is kept "realistic" (still a movie, still things heightened, but not to a Hollywood degree). If you can dig that, you probably will like where this is going (with some nice touches/twists along the way).