There is nothing like a good dog movie. And this is nothing like a good dog movie. A lonely 12-year-old boy is working as a dog-walker to save up for a dog of his own when he discovers a scruffbag stray called Hubble, whom he adopts.
Trouble is, Hubble is a dog from outer space (from the dog star Sirius) and he has dire information to impart to his new owner concerning the future of dogkind on Earth. Rubbish.