The One. Единственный (2021)

An old girlfriend of Ty's shows up at Heartland and stirs up trouble. Lou is reunited with Sugarfoot, Mrs. Bell's miniature horse.

Nick Harwell arrives to train Ben but becomes interested in buying Spartan. Mallory thinks Lou plans to re-home Copper and runs away with him, only to discover a plot to sell wild mustangs.

Tim's visit to Heartland causes sibling rivalry between Lou and Amy. Jack takes Lisa Stillman fishing on their second date.

Disaster strikes when the barn erupts into flames and Jack's badly hurt getting the horses to safety.

Amy finds herself working with the enemy when Ashley asks for her help. Amy's also preparing Spartan for the Fall Finale while Lou decides what to do about a job offer in New York.