Crusade: A March Through Time (also known as "Crusade in Jeans") is a 2006 Belgian movie adapted from the book of the same title by Thea Beckman. It tells the story of Dolf (Joe Flynn), a 15 year-old boy from 20th century Rotterdam who is thrust into the year 1212 after an experiment in his mother's research facility goes awry. He finds himself under attack by medieval bandits, but is saved by the beautiful Jenne (Stephanie Leonidas), a member of the Children's Crusade, a group of thousands of children led by a teenage boy named Nicholas (Robert Timmins) and the monk father Anselmus (Michael Culkin) on a journey to the Muslim controlled Holy Land. Using his knowledge of future technology and medicine, Dolf is able to keep them safe and on track. But he begins to suspect that all is not as it seems, and that he is in for the adventure of his life.