With new gas laws and the discovery of dead sheep, everything in the little town of Lenten is upended overnight. The twins Hielke and Sietse, and Josie, take the matter into their own hands as their friend Nando is accused of killing the animals. The Kameleon Chained Up is thrilling and funny, though at times scary too, but with Hielke and Sietse steering the boat, everything is under control.