Luuk Bos is twelve years old. A small, slight boy with bright red hair, for as long as he can remember, Luuk has been convinced that he is the son of the strongest man in the world. The boy has grown up with his single moth - er Dorien and, when he was younger she would tell him the most won - derful stories about his father. When Luuk, whose striking appearance has earned him the name ‘red dwarf ’ moves up to secondary school, he falls head over heels in Minke, who is strong and independent. One day he comes across a competition to find the town’s strongest man. This is where he meets one of the contestants, René. René once had red hair, just like Luuk. Gradually, Luuk begins to feel convinced that strongman René could in fact be his biological father. But when his mother hears about this she decides to tell her son the truth…