Families are complicated! Molly’s dad seems so lonely. He lives on his own, he won’t get a pet and he doesn’t get on with his brother … Best friends Molly and Beth suspect his problems lie in his past, but what can two 13-year-olds do about that?

Well, when they have a time-travelling door, maybe they can do something! The girls go back to 1975 hoping to right some wrongs - if they can navigate 1970s cars, food and boybands. And if the colourful fashions don’t blind them first!