An exciting adventure with a friendly extraterrestrial an his robot. When a big black spaceship arrives everyone is afraid. Who is in it What do they want Two children Sue and Ben dive into the sea and meet PB3 and his robot Robin. Together they come face to face with the bad OOs from Planet XO11 and together they discover a terrible plan. Can they stop OOs Games and language activities an audio recording of the story and the song and a picture dictionary.