Ireland was gripped by a bizarre phenomenon in the summer of 1985: sightings of moving statues of the Virgin Mary. Tens of thousands of people flocked to villages in Kerry - and elsewhere - to catch a glimpse of these monuments, which eyewitnesses claimed would move, beckon and even undergo strange facial transformations. Diarmaid and Catriona chart this crazy story, look at how it challenged the Catholic Church, and also trace the history of holy apparitions in Ireland.