To right a penalty he made in an important soccer games, young Dolf Wega heads to the laboratory of his mother. He discovers an amazing invention: a time machine! One moment of clumsiness, and he’s projected right into the Middle Ages. He’ll soon join the ranks of an extraordinary legion, on an epic and very special Crusade. The movie is an adaptation of the youth bestseller by Thea Beckman (Crusade in jeans, 1973) is a wonderful classic that still is a household title after 40 years.