Harry and Ava are two ordinary kids doing their best to survive life on a massive space station, Vantia1, after their home planet was swallowed by a mysterious black hole known as the Void. Ava is training to be a fighter pilot, while Harry uses his talent for engineering to invent amazing gadgets that help him solve any problem standing in his way. And now Vantia1 is facing a crisis. When they intercept a secret message and discover that a mysterious and unidentified object is about to attack their home, Harry and Ava realise that only they can tackle the evil mastermind responsible.