When Lillebror's mother is mysteriously hurt in a biking accident, Lillebror and Knerten turn the town upside down trying to find the culprit.When Lillebror's mother is mysteriously hurt in a biking accident, Lillebror and Knerten turn the town upside down trying to find the culprit.When Lillebror's mother is mysteriously hurt in a biking accident, Lillebror and Knerten turn the town upside down trying to find the culprit.