A local horse show is cancelled and Lou saves the day by stepping up to host it at Heartland. Amy trains Georgie to take on an entitled brat from school, while Mallory's crush on her coach heightens.
Jeremy forces Amy to make a tough decision about Phoenix when his horse, Buckingham, sustains a serious injury that threatens his jumping career.
Amy and Ty return from their trip to find everyone reeling from the devastating fire at Lou and Peter's home.
A trip to help out an old friend at a fishing camp doesn't go as planned, and a series of unexpected events elevate it to a life-changing weekend for the entire family.
Amy is bursting to ask Ty about the engagement ring, but a couple of runaways throw everything into turmoil. Lou and Peter must cope with the money pit that the Hanley Farm renovation has become.
A mystery horse arrives at Heartland, sending Amy and Ty down a path that will alter their lives.
Amy's dog Lobo is injured by a trigger-happy rancher and it's up to Ty to save his life. Meanwhile, Mallory hatches a wild plan to avoid moving to Nashville.
Amy and Ty join Scott on a trip back to his old reservation to save a herd of wild horses from the dangerous EHV-1 virus. There, Scott must deal with some unfinished business from his past.
When tragedy strikes, Amy must find a way to save Mr. Hanley's rescue horses from kill buyers, but can she rescue them before it's too late?
Amy is roped into helping Tim project a positive image to the community. Ty works to restore his bike and his shaken confidence so he can get back on the road.
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.
A friend from Jack's past shows up when one of their old bandmates passes away. Lou and Lisa secretly try to gather the other remaining members for a reunion performance to celebrate Jack's birthday.
Amy helps to restore the confidence of a troubled young trick-rider so that she can get back on her horse and perform again.
Amy works with a chuckwagon horse and discovers an impediment that could put the entire team in danger, so she changes the dynamics of a prominent chuckwagon family.
Peter and Lou bring the baby back to Heartland and invite the in-laws to the naming ceremony. Scott drops by Ty's new place with a motorcycle requiring some work.
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.
Ty's travel buddies, Grant and Blair, return to Heartland, and Ty and Amy's relationship is put in jeopardy. Caleb and Ashley's relationship is in turmoil after finding out their marriage is not legal.