Anna loves her pony, Acorn. But her parents think Acorn is the reason why she is doing badly in school. If she doesn't get better grades, they will take him away. Pam and Lulu, her Pony Pals, want to help. Will Acorn be a pony for keeps?.

Anna, Pam and Lulu are planning a camping trip with their ponies. Anna is excited about the overnight trip and trail riding with her pony, Acorn. But the trip turns out to be a bigger adventure than the Pony Pals expected.

When Lulu returns from vacation she discovers Mr. Olson's nephew, Charlie, has been riding Snow White and has gotten close to Pam and Anna.