After a skateboarding accident in his local car park, Arran Towers, young Ben Lewis discovers that the Car Park is inhabited by more than just the attendant (Higgs) and his dog (Tripod). There exists another incredible world of characters - the GRAFS! When he and Higgs discover a plan to destroy the Towers, the secretive and wonderful world of the GRAFS will be destroyed forever. They MUST escape, before it is too late and Ben and Higgs have little time to set them free. Will they succeed? Join Ben on his journey of discovery to find out if he can help them survive the explosive ending!