Newly arrived in the town of Miradero, city girl Lucky struggles to fit in at school but befriends a wild stallion after she is wrangled for taming.

Headstrong Lucky persuades Pru to give her a crash course in horseback riding so she and Spirit can participate in the annual Saddle Club race.

On her first camping trip, Lucky decides to decode her dad's old treasure map, then sneaks off with Abigail, Pru and Spirit to find the fortune.

Desperate to be Student of the Month, Lucky teams with Maricela to create a booth for a school fundraiser, pitting herself against Pru and Abigail.

As Lucky and saddle-maker Turo plot to help a horse neglected by his cruel owner, Lucky's dad works to fix a cracked dam before disaster strikes.

Determined to throw Pru the best surprise birthday party ever, Lucky enlists Abigail's help in planning the event, which quickly gets out of hand.