Oli, Tads intrepid two-year-old daughter, has turned him into an overprotective father and Mummy feels sidelined by the attention she gets. When they find the magic lamp in Buckingham Palace, Mummy asks it to travel back in time to Paititi, Peru, in 1502. Tad, Sara and the whole team will have to follow Mummy into the past, before he changes history? Their journey will take them across the Atlantic Ocean from Peru to Greece, and from there deep into the Middle East, all the way to the cave of Ali Baba and the Forty Thieves.