14th-century Franciscan monk William of Baskerville and his young novice arrive at a conference to find that several monks have been murdered under mysterious circumstances. To solve the crimes, William must rise up against the Church’s authority and fight the shadowy conspiracy of monastery monks using only his intelligence – which is considerable.

The plot concerns a small group of people who are forced to flee from their base (which happens to be a Mission) in an old school bus when the VC launch a vicious assault upon it. Along the way they are joined by a group of three battle hardened American Special Forces soldiers and together they desperately fight to make it to safety.