Rachael has had the best, most amazing, incredible idea! She’s determined to make her Granny’s lifelong dream of becoming a jockey come true … what could possibly go wrong?

Easter holidays on the farm with Granny and Grandad are always great fun for Rachael, her cousin, Tom, and bestie Frankie. But this year, things are different – Rachael’s cousin David is visiting from New York! What will he be like? Will he like the farm, the ponies Bubbles and G-Pip, or will he ruin all the fun?

When Rachael's brilliant idea strikes, the gang must come together for Operation Granny National. They set out to help Granny live her dream of becoming a jockey. But will they pull it off? And what happens when everyone finds out what they’ve done? There’s bound to be BIG trouble ahead!