Amy is thrust into the limelight when she performs a miracle on a traumatized horse and a video of the event is posted online.
Amy finds herself caught in the middle of a family crisis when she tries to help a girl and her horse recover from what appears to be a freak accident.
Jack's truck is on its way to rust bucket heaven, forcing him to find the courage to say goodbye to a part of his past.
Amy and Ty spend the night in the "haunted" Hanley barn, trying to get to the bottom of a mystery.
In the hopes of impressing Ashley, Caleb takes lessons in bulldogging from former rodeo champion Tim, who stubbornly refuses to acknowledge that he may no longer have what it takes. Kit and Ty sort out their lingering break-up issues as Ty assists Scott with the delivery of Kit's mare's foal. Lou invites Peter to manage his business from the Heartland facilities while his office undergoes renovation, and lives to regret it.
Ty and Amy clash over how best to raise an orphaned foal. Lou must defuse a potential lawsuit after fending off unwanted advances from an unscrupulous business client. Meanwhile, Val tries to connect with her newly-reconciled daughter Ashley and a cougar stalks the Heartland area.
When Tim buys a racehorse from Lisa, he puts everything on the line, including Amy, to win big.
Ty protects his mother Lily from his abusive stepfather, who shows up at Heartland to win her back.
Amy is upset when Ty flies off with Scott to a remote vet call on his last day before heading to vet school.
Amy leads a rescue search to find Ty and Scott, whose plane has gone missing in a remote forested mountain area.
While the boys head off on a fishing trip, the girls are left back at Heartland to deal with the havoc caused by a dog, a porcupine and a herd of escaped cows.
Victor Whitetail visits Heartland, leaving Tim to wonder if Victor was more than just friends with his ex-wife.
When a dangerous horse disease called Strangles puts Heartland under quarantine relationships are put to the test and Pegasus becomes very ill.
Relationships clash in The Happy List! While Amy is upset with Ty for buying a rundown motocycle, Caleb and Ashley clash over him leaving for a rodeo. Amy is asked by Val to help her get back on her horse and start show jumping again!
Amy faces a tough moral dilemma when she discovers Mr. Hanley has abandoned his horses and is on the brink of losing his farm. Meanwhile, Lou prepares for her wedding by picking a maid of honor and bridesmaids.
Caleb struggles to get over the physical and emotional scars from his terrible accident as Amy tries to get him back on a horse. And Tim doles out some tough love as he recognizes that Caleb is headed down the same path of becoming an addict that he himself took after his own accident many years ago. Also Lisa and Jack consider announcing their engagement.
When Amy follows in her mother's footsteps and enters a professional colt starting competition her gift with horses, and self-confidence, is put to the test.
A surprise announcement by Peter throws Lou's wedding plans into disarray while Amy and Ty are forced to make difficult decisions about their futures.
