Join the Sleepover Club: Frankie, Kenny, Felicity, Rosie and Lyndsey, five girls who want to have fun – but who always end up in mischief. With the help of the Sleepover Club, Mrs McAllister's stables are hosting a Wild West Open Day. There'll be lots of fun and games, a sleepover in one of the barns, and a pony trek in the morning! But what are the M&Ms planning to do with their secret stash of beans and sausages from the campfire cookout...?