. .. ARE THE MEN WHO'VE GOT THEM IN THEIR SIGHTS. People-smuggling, counterfeit currency & 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 & death when he uncovers a terrorist cell on a mission of death & destruction. The target: hundreds of passengers on a train deep below the English Channel. With the clock ticking & the explosives primed, Shepherd & his colleagues have to decide just how far they are prepared to go to save innocent lives. & they realise that to avoid catastrophe, they have to be even more merciless than the terrorists.