Luke hates nature, preferring the excitement of computer games to dull walks in the countryside. But his view of the world around him begins to change when enigmatic loner, Guy, shows him some of the secrets that the planet itself appears to be hiding from modern society. Set in a very recognisable world of school and the suburban family, 'Pica' tumbles into a fascinating world of magic and fantasy where transformations and shifting identities become an escape from the world.