Dolf a 15 year old boy is sent back in time by a timemachine. Accidentally he is sent back to the Middle Ages. He is rescued by children who are part of a childrens' crusade, on their way to rescue Jeruzalem. During the trip Dolf finds out the danger is not coming from outside the crusade, but from within.
The seventeen year old Stach is faced with five impossible assignments he has to complete in order to become king. Things do not go as easily as the boisterous Stach had expected, especially when he is confronted with matters of life and death.
Nine-year old Andreas Decker is the new kid in town. He tells his class that he has lived all over the world on account of his parents being top scientific researchers. Yet classmate Vero finds Andreas's workaholic parents really weird. She suggests to spy on them. When Andreas overhears their conversation about conquering the world and becoming leaders, their can only be one conclusion for the baffled children: Andreas's parents are aliens.
