Lizzie is running away. She doesn't have any friends at her new school, so she packs a bag full of peanut butter sandwiches and says goodbye to her family. But when she stumbles upon a mysterious blue box in the woods (that's bigger on the inside!) Lizzie embarks on a much grander journey than she had planned. The box is a time and space machine called the TARDIS and it's piloted by a mysterious woman called the Doctor, who claims to be a space alien! The Doctor and the girl embark on a wild adventure through time and space, visiting the Egyptian Pyramids, dinosaurs, the surface of an alien planet, and more. But will Lizzie be able to get back home? And will she learn that making new friends isn't so hard after all?