Saddle up for a week in pony paradise! At Sunnyside Stables, each girl gets her own pony to look after and ride for a week. Sophie is so excited to be at Pony Camp, it'll be such a treat for her to ride non-stop for a whole week. Her mum and dad have been too busy with her baby brother Albie to take her riding, so she hopes she isn't too rusty. When items belonging to the girls start to go missing, Sophie decides to turn detective and catch the thief . . . but what will happen if everyone suspects that SHE has been stealing?