A tripartite exploration of religious confticts first visits Germany, where Turkish Islamic fundamentalists have been placed on trial for issuing a fatwa that is regarded as an incitement to murder. Joan Bakewell looks into their attempts to establish an Islamic state within the country. Tim Whewell hears claims of dirty tricks as the Russian state and the Orthodox Church unite against western faiths, while Edward Stourton is in Poland to examine satanic activity in Europe's most devoutly Catholic country.