Johnny and the Bomb

Johnny and the Bomb (2006) is a sci-fi & fantasy with 1 season created by Terry Pratchett, rated 6.7/10.

Johnny Maxwell stumbles upon a time machine when he helps an old woman, but little does he know that his journeys back to 1941 cause a chain of events which alter history. Johnny and his friends must go back in time to reverse the changes and save his own existence.