Johannes is a free dog, a fast dog - such a fast dog! He lives in an urban park by the sea, and every day, he runs through the park, seeing all, missing nothing, and reporting what he sees to the parks three ancient Bison, the Keepers of the Equilibrium. But the Equilibrium has been disrupted. Mysterious rectangles are hypnotising Johannes, the humans are erecting a strange new building, and an entirely new kind of animal has arrived in the park. Johannes must run faster, see better, and ultimately do more than run and see - he must liberate those he loves.