Emma and Jackie are full of excitement about their Australian sleepover at Ally’s farm. When they go for a horse ride however, things go horribly wrong. Emma’s horse suddenly bolts away, leaves the trail and throws her, leaving her stranded and lost deep in the bush. Not knowing where their friend is, Ally and Jackie return to the house and Ally has to swallow her pride and ask Dan for help. The situation gets worse though because Emma’s disappearance means Jackie has to travel alone to Hamburg to sort out an emergency involving Emma’s dog, Strudel. After arriving safely, she then calls upon Nicholas who is more than happy to lend a hand. With Ally and Dan trying to find Emma in the Australian bush and – on the other side of the world – Jackie trying to find Emma’s dog in a strange European city, the three girls have got themselves into a some significant muddles that will take quick thinking and a lot of luck from which to escape.