A former British Intelligence officer has become a businessman since leaving the Secret Service.

When his business collapses he faces financial ruin, until a chance meeting with a former colleague presents him with a new opportunity.

Despite his misgivings he agrees to act as a courier for a gang smuggling alcohol and tobacco across the English Channel from Calais to Dover.

The rewards are very good and it seems easy to avoid detection.

Soon he is tempted to try a more lucrative cargo... and that's where it all starts to go horribly wrong.