Ihr Auftrag, Pater Castell ("Your Mission, Father Castell") is a German television series. In the series criminal cases are shown in which the Church and the police have to work together, given a pastor of the Catholic Church in Germany is not allowed to investigate alone. The English title of the series The Fifth Commandment is a translation of the original working title.
Monsignor Simon Castell is a Jesuit who is specially commissioned by the Vatican to solve criminal cases all over the world, always in connection with the Church. Father Castell therefore has to acquire a wide variety of skills, such as flying aeroplanes, opening locked locks and doors, learning self-defence and even repairing motorbikes.
To accompany the 1st season, ZDF broadcast 4 so-called webisodes in the channel's own media library, short stories in which the Father's back story is told and how he was trained as a special agent.
Each episode has a duration of 45 min and had 3 seasons (for a total of 14 episodes) between 2008 and 2010.
The series has been described as very popular and called "James Bond in cassock" by the Frankfurter Allgemeine.