True Lies - He fought with the Paras and Survived bombings, shootings and torture. Then he discovered the world of sinister undercover operations as a 'spy for hire'. This is the incredible story of the man who infiltrated Greenpeace

It's 8am, it's freezing cold and I'm about to dump a lorry load of coal on the doorstep of the Prime Minister. Just a typical day in the life of an activist for Greenpeace, the world's biggest and best-known environmental campaigners. They're hoping I'll help them score massive publicity coup - one that will embarrass a government breaking its promises over climate change. What they don't know, ho...