Prairie Dusty Trails needs a horse so she can round up a herd. She goes to Ace Fender Bender for help.
Prairie loves to herd cattle on her trusty steed, but she soon realizes there's not enough cattle to herd and her stick pony just isn't the same as a real horse. So Prairie decides to find something new to ride, and she ventures across Lalaloopsy Land observing the different pets she encounters.
After no success, Spot asks Prairie if she would like her to create a horse from scratch. Prairie now tries out her new horse, only this one is a rocking horse which cannot move. The girls turn to Ace for help. Ace modifies Prairie's rocking horse in his garage by adding custom wheels to the bottom.
Back on the range, Prairie tries to herd her friends' pets, but they run faster than her horse can move. After stumbling too far on her horse, it begins to roll backwards downhill and crashes. Prairie's friends chase after her and ask her if she is all right, after which she realizes what she can do. Berry, Spot, and Ace all tug on the rope tied around Prairie's wooden horse and pull her along as she rides the wide open range.
Ace: Doo-Hicky, Thingy Ma -A-Bobby, Whatch-A-Ma-Doodle.
- This was Prairie and Ace's debut.
- Peanut's Elephant, Crumbs' Mouse and Marina's Whale appear without their owners.