' Three things come with taking a man's life. The first one is the easy bit - going into a room and shooting somebody... The second is preparing yourself if you get caught coming or going and getting life in prison - could you do it? And the third and final and most important is can you live with it for the rest of your life? And that's where a lot of people fail.'

With these chilling words we are afforded a glimpse into the mind of Northern Ireland's most infamous paramilitary godfather, Johnny ' Mad Dog' Adair.

Enemies Within explores Adair's rise from neo-Nazi skinhead to leader of the notorious Ulster Freedom Fighters, a cover-name for the assassination wing of the Ulster Defence Association, a Protestant paramilitary group that killed hundreds of people during the Troubles.

With unprecedented access to Adair and his associates, critically acclaimed author and counter-terrorism expert Aaron Edwards paints a vivid picture of how the loyalist godfather built up an extensive terror network that was at one time responsible for more deaths than the IRA.