When the Club starts playing polocrosse at the competitive level, Stevie's need to win threatens her friendship with Carole and Lisa.

Upon learning that their riding instructor is in serious financial trouble, three friends drum up new business for him and arrange a riding demonstration--starring themselves!

Although the girls are overjoyed when Max forms a Pony Club, Lisa worries that Carole and Stevie will be jealous when she gets her own horse.

Carole, Stevie, and Lisa make new friends and have a variety of adventures when they visit Kate on her family's dude ranch near the Rocky Mountains.

The members of the Saddle Club are excited about going to Moose Hill, a sleep-over riding camp in Virginia, but the experience turns out to not be quite what they had expected.

Whild attending riding camp at Pine Hollow Stables, Lisa finds her two friends preoccupied with their own projects and not very interested in her ideas for a more organized Saddle Club.

Carole, Stevie, and Lisa are members of the Saddle club and are best friends, but Carole is having trouble coping with the attentions her widowed father is giving a woman whom she thinks might become her stepmother.

Lisa, Carole, and Stevie decide it is time for Max to get married, but when Max finds out what they are doing he is not pleased.

While visiting the racetrack stables with the Pine Hollow veterinarian, the Saddle Club uncovers a plot to harm Monkeyshines, a stallion in training for the upcoming race.

Although they cannot be together for the summer, the Saddle Club members still find adventure, with Carole and Stevie on a ranch in Wyoming and Lisa off to Europe.