For the first time an exclusive visit behind Vatican walls records the history, traditions and daily life of the smallest army in the world, the Swiss Guard, whose duty is to defend the Holy Father at any cost, giving their own lives if necessary. The film captures the highlights of a typical year for the Swiss Guard, including their ceremonial duties as well as some more intimate moments. Here is their story through the lives of the members of the Swiss Guard, offering a window on the Vatican not seen before.