Ty is badly injured when he crashes his bike on a remote road, leaving Jack to search for help in the middle of nowhere. Meanwhile, an anxious Amy has visions that something has happened to Ty.
When Jack learns that Ty is riding his bike solo to a remote lake to spread his father's ashes, he decides to surprise Ty and join him for this meaningful road trip.
Ty's mother Lily returns to Heartland with shocking news about his father and a secret that threatens her relationship with her son.
When Amy tries to heal an abused and violent racehorse, Ty and Jack think she's taken on more than she can handle. Can Amy prove them wrong?
When Tim's young racehorse Cisco is stolen on the way to his maiden race, Amy and Ty get help tracking him down from an unlikely source: Ty's step-father Wade.
When Ty visits Mrs. Bell, to thank her for paying his school fees, he and Amy are surprised to learn she's moved out of her home and away from Sugarfoot.
Jack shanghais Tim, taking him to Moosejaw to confront his ex-girlfriend and son. Meanwhile, Amy is left to confront Janice about how to train the new racehorse.
Amy meets a professional liberty horse trainer and is inspired to take her horsemanship to a new level. A leaky roof forces Amy and Ty to move into Ashley and Caleb's trailer.
Amy and Ty work through their trust issues as they train a pair of Clydesdales. A horse-crazed boy and his mom show up at Heartland and Tim learns about a son he never knew he had.
Tim and his girlfriend announce they are selling the ranch and moving to California, but one of Tim's old girlfriends comes back and claims that Tim is the father of her son.
Caleb's rodeo buddy Bryce returns from Afghanistan in a wheelchair and asks Amy to get his horse back into good condition so that he can sell it, but Amy would rather convince him to try riding again.
Bad publicity from Stewart Forrest's lawsuit against Amy has everyone at Heartland concerned. When Chase pulls his horses from training, Ty lends Amy his support and Lou does a little investigating.
When famous Olympic trainer Stewart Forrest hires Amy to coach his Olympic hopeful daughter, Amy feels that he's pushing her and her horse too hard. Ty is concerned when Amy asks Chase for help again.
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.
Caleb needs some cash for a down payment on his trailer lot, so he enters a team roping event, but Amy is upset when he asks Kit to be his roping partner.
When Tim decides not to enter his horse in the big race, his girlfriend Janice agrees to ride for a competitor. Badger discovers the car he bought is stolen and must get rid of it.
Peter returns from Dubai to find out what's going on with Lou. Amy and Ty convince Sarah, the town hermit, to let them treat her sick horse at Heartland.
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.