The Bluchers – a terrible kind of plant – are taking over the city and everyone is evacuating. Ade’s school has closed and his best friend is gone but how is he going to survive, now that his mother won’t leave the flat and he’s desperately hungry and thisty? The future of Ade’s life depends upon the people left in his tower, people he doesn’t know – will what’s left of his community rally round and survive the terror that is the bluchers?