Even deadlier than terrorists … are the men trying to stop them. People-smuggling, counterfeit currency and attempted murder. It’s all in a day’s work for undercover cop Dan ‘Spider’ Shepherd. But what starts as a run-of-the mill investigation quickly turns into a matter of life and death when he uncovers a terrorist cell on a mission of death and destruction. The target: hundreds of passengers on a cross-channel train deep below the English Channel.