Amy and Lou Fleming, and their grandfather Jack, deal with life after their mother's death while a new ranch hand, Ty Borden, comes to live and work at Heartland.

Lou sends an uncured horse back to its owner, which causes friction with Amy. Ty builds Amy a jumping ring and Jack decides to keep Ty on at Heartland.

High profile horse breeder Lisa Stillman asks Amy to help her with her horse, Promise. Lou holds a Heartland Open House to help bring in business.

Ben Stillman arrives at Heartland and his treatment of his horse Red angers everyone. Ashley lures Ty to Briar Ridge with a job offer.

Lou decides to make a promotional video for Heartland. Ty's new job at Briar Ridge isn't going as planned. Scott gets Amy to help with a wild pony.

Lou's boyfriend Carl arrives at Heartland with a couple of different proposals for Lou. His welcome, however, is both hot and cold.

Lou isn't pleased when a neighbouring rancher brings a pregnant mare named Melody to stay at Heartland. Ty is astonished when Jack asks him to join him on a cattle roundup.

The pressure is on when a famous race horse, Gallant Prince, is sent to Heartland to see if it can be rehabilitated.

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.

It's been four months since Ty's sudden and unexplained departure, and Amy has moved on and become used to working with Caleb Odell, Heartland's new stable hand. With Amy's 16th birthday just days away, Lou is busy planning a surprise birthday party for her sister.

When Ty comes back to Heartland, he quickly realizes that profound changes have occurred in his absence. Caleb, the new ranch hand, seems to have taken over both his job and his place in Amy's heart.

When Tim gives Amy a beautiful Grand Prix jumper for her birthday, she's forced to make a difficult choice between a career in show jumping and her work at Heartland.

The spring cattle drive is a much-anticipated event, and Lou hustles everyone out of the house at the crack of dawn for a secret all-day date with Scott. Simmering tensions rise to the surface as Amy seems more interested in getting roping tips from Caleb instead of riding with Ty.

Lou is forced to reconsider her choice to live and work at Heartland when her former New York colleagues arrive for a weekend equine retreat. Amy is unsure whether she can trust Ty.

Out for a ride along the river, Amy comes across an RCMP officer desperately trying to save a young boy from drowning. Scott misinterprets Nick Harwell's polo match invitation to Lou as a date. Mallory seeks Jack's advice on how to deal with her love life.

With the annual Hudson Heritage Rodeo looming, everyone at Heartland gets roped into the action. Jack and Tim are forced to work together on the planning committee. Meanwhile, Lou is grooming Soraya to compete in the Queen of The Rodeo competition.

In the middle of a heat wave, a cattle truck loaded with thirsty and overheated horses pulls into Heartland. Ty can hardly believe his eyes when the driver turns out to be his dad.

Ty asks Amy to give their relationship another chance. Ashley makes a decision that surprises her mother and Lou. Cattle rustlers hit Big River Ranch, and the situation gets out of hand.

When Amy's teacher brings a horse named Boxer to Heartland, Amy learns a valuable lesson about fathers and daughters. Ty and Kit seem to be blissfully happy together. Lou catches Constable Rodriguez with another woman.

When Hollywood comes to Heartland, Amy is so starstruck, she loses track of what's really important in her life.

Lisa meddles in Lou's business and personal life with disastrous results. Lisa brings a "cursed" horse for Amy to treat. The beautiful Andalusian named Diva Girl has been returned to Lisa by multiple owners.

Lou goes head to head with Big Alberta Oil when seismic surveyors force their way onto Heartland.

Clint brings two tough kids on probation to Heartland forcing Ty to deal with a part of his past he'd rather forget.

Lou resurrects the Hudson Derby, stirring up an age-old grudge match between Jack and Tim.

Amy resorts to desperate measures when her horse Spartan is mysteriously stolen and reappears sold to Wes, the man who set fire to the Heartland barn.

Amy heads into the mountains to visit a First Nations horse healer named Victor Whitetail, and leaves with a new understanding about horses, her mom and herself.

Ty and Amy are finally forced to deal with their feelings for each other after a snowstorm strands them at Jack’s fishing cabin in the mountains.

Amy tries to pretend that nothing has changed when Ty returns to Heartland with a surprise guest.

Amy scratches the surface to discover Nick Harwell's problems with his polo ponies, Lou's life in Dubai and Tim's relationship with his jockey are not what they appear to be.

When an unspoken attraction re-surfaces, Amy discovers that honesty might be the best policy, but it certainly isn't the easiest one.

A looming high school graduation and Spartan's near fatal bout with colic forces Amy to face where her future really lies.

When Amy and Ty convince Sarah, the town recluse, to let them treat her sick horse at Heartland, the family helps her face the ghosts of her past..

Tim enlists Amy to ride Lightning Dexter in a big time stakes race when he finds out his girlfriend, Janice, has teamed up with the competition

Amy and Kit have to put their differences aside to on Caleb in a team-roping jackpot.

When Amy is hired to do a horse clinic with a group of inmates, Ty is surprised to discover that one of them is a friend from his bad old days at the group home.

Lou comes back from Dubai to spend time with the family. Ty and Amy discover where her father's rustled cattle are being pastured and the whole family rides out to bring them back.

It’s a week before Christmas and holiday preparations are moving into high gear at Heartland. Lou’s new husband Peter may not be able to spend Christmas with her due to his father’s illness. Amy, Ty, Jack and Tim head out on a rescue mission when an anonymous call is received about starving, abandoned horses trapped in an avalanche. And Caleb and Ashley discover you don’t need expensive gifts to have the perfect Christmas.

When an irate Grant, Ty's travel buddy shows up at Heartland to punch out Ty for "kissing Blair" the disclosure puts Ty and Amy's relationship in jeopardy. Meanwhile finding out that their marriage was not legal puts Caleb and Ashley into a turmoil. All the relationship drama makes Lou question her marriage with Peter.

Amy fights to keep Dexter in the family when she learns Tim is putting the horse up for sale in a claiming race.

Jack is forced to revisit a rough patch in his marriage when he finds an unfinished song by Lyndy in her old guitar case.

Jack is forced to revisit a rough patch in his marriage when he finds an unfinished song by Lyndy in her old guitar case.

Amy must deal with Stewart Forrest's unrealistic expectations when she works with his daughter and an elite jumper that may be too much horse for the girl to handle.

Lou helps Amy fight the lawsuit to save her sister's reputation and family business.

When a paralyzed military vet and ex-rodeo cowboy hires Amy to help sell his roping horse she sees an opportunity to re-train both horse and rider

A horse crazy young boy comes to Heartland and quickly bonds with Amy, but his mother has a secret that could change everything for the Fleming family.

Amy and Ty work through their trust issues as they train a pair of Clydesdale's, but it is an emergency at Heartland that reveals their true strength as a team when it matters most.