Spooks - Season 1 - Eps 6: The Lesser of Two Evils
Patrick McCann, an IRA leader claims to have information about a nuclear attack on the UK mainland, can MI5 trust the IRA enough to give them what they want in return; 36 hours free of surveillance, free to do whatever they wish?
About Spooks

Title: Spooks
First Air Date: 2002-05-13
Last Air Date: 2011-10-23
Status: Ended
Rating: 7.6/10 (from 126 votes)
Language: EN
Seasons: 10
Total Episodes: 86
Network: BBC One
Genres: Drama, Action & Adventure, Crime
Production Companies: BBC, Kudos
Synopsis
Tense drama series about the different challenges faced by the British Security Service as they work against the clock to safeguard the nation. The title is a popular colloquialism for spies, and the series follows the work of a group of MI5 officers based at the service's Thames House headquarters, in a highly secure suite of offices known as The Grid.
Cast

Peter Firth
Harry Pearce

Nicola Walker
Ruth Evershed

Max Brown
Dimitri Levendis

Lara Pulver
Erin Watts

William Hope
Jim Coaver

Alex Lanipekun
Ben Kaplan

Geoffrey Streatfeild
Calum Reed

Tom Weston-Jones
Sasha Gavrik

Alice Krige
Elena Gavrik

Jonathan Hyde
Ilya Gavrik