Strike back

Two soldiers. John Porter - seventeen years ago he was one of the SAS's most promising young soldiers. Now he's a broken man: a drunken tramp living rough on the streets of London. Sir Peregrine Collinson - Britain's most decorated military hero, a bestselling author, and the Prime Minister's personal envoy. In Beirut, a brilliant young Sky TV reporter, Katie Dartmouth, has been captured by a ruthless gang of Hezbollah terrorists. She is to be executed live on television unless British troops are withdrawn from Iraq. A nation holds its breath and the Government is teetering on the edge of…