Amy finds herself overwhelmed after promising to "de-sensitize" three horses for the local police. Amy returns the last of Ty's things and he continues down his road of confusion.
Jack resists taking a trip to France with Lisa while dealing with some old memories. Caleb asks Ty to be his best man but finds it harder to ask him to move out.
Tim decides to enter Lightning Dexter in a claiming race, despite Amy's objections. Amy and Ty's troubles are aggravated when Chase comes to town and offers to put in a bid on Dexter.
As graduation looms, change comes to Heartland. Amy is offered a full scholarship from an equine program at a university in Colorado. To Mallory's chagrin, Badger comes to work as a hand at the ranch.
Mrs. Bell has an accident in her pony cart and Ty needs to treat Sugarfoot at Heartland. Lou has extended her stay at the ranch and is ducking calls from Peter, who's still in Dubai.
Amy scratches the surface to discover Nick's problems with his horse. Meanwhile, Lou is home for a visit after finding Dubai may not be all that she hoped for.
Finding the ranch too much to handle by himself, Jack is anxious for folks to come home. Lou is in Dubai while Caleb and Ashley are on the rodeo circuit.
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.
When Amy follows in her mother's footsteps, her gift with horses, and self-confidence, is put to the test.
Caleb pushes everyone away as he struggles to deal with his accident. Mallory is interested in joining her school riding club and gets a little help from Amy and Caleb.
Amy faces a tough moral dilemma when she discovers Mr. Hanley has abandoned his horses and is on the brink of losing his farm.
Amy is upset when Ty flies off with Scott to a remote veterinarian call on his last day before heading to school.
Ty protects his mother Lily from his abusive stepfather, who shows up at Heartland to win her back.
When Tim buys a racehorse from Lisa, he puts everything on the line, including Amy, to win big.
When Amy and Ty become the proud new parents of an orphaned foal, the strength of their relationship is put to the test.
Ty's apprenticeship with Scott Cardinal takes him to the Bailey ranch where Kit's mare is about to deliver. The idea of Ty and Kit spending time together makes Amy jealous.
Amy and Ty spend the night in the "haunted" Hanley barn, trying to get to the bottom of a mystery.
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.
Business is booming at Heartland. 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.
An oil company begins unwanted exploration on Heartland property, so Lou mobilizes the community against them.