Princess Lulu is finding royal life very troublesome. Her mum wants her to behave like a proper princess, and now annoying Prince Olaf has come to stay. Lulu decides to escape into the plains and visit the baby lion cubs who live there. But they've disappeared! All except Tufty and he won't survive by himself. Lulu has to find his family fast! It's time for the Rescue Princesses to spring into action.