Harry Pearce (Peter Firth) is still head of the counter-terrorism department (Section D) at MI5. Harry’s team is transporting apprehended terrorist Adem Qasim (Elyes Gabel) through London when the convoy is attacked, allowing Qasim to escape. MI5 is humiliated in the press, and relations between British and American intelligence agencies are frayed. Realising that the CIA will demand a scapegoat and that he is soon to be decommissioned from MI5, Harry disappears. He thinks someone from agency has betrayed and he start the search with his former section chief, Erin Watts (Lara Pulver). How they caught the intruder is the story all about.
Spooks The Greater Good is a 2015 British spy film, continuing from the British spy series Spooks (known as MI-5 in some countries), which aired on BBC One from 2002 to 2011. Performances are good. But i would give credit to story writer for giving a perfect story.
It reminded me of MI part 1 at first but there was significant difference as movie proceed. It lack pace in some areas but will keep you interested till last moment.