Amy is bursting to ask Ty about the engagement ring, and why he hasn't proposed yet, but a couple of 'runaways' throw everything at Heartland into turmoil.
Ty struggles to deal with the fact that Amy has found the engagement ring and has to decide how and whether he is going to propose to her or not.
Tim hopes for a big commission when he helps a wealthy weekend cowboy look for his dream ranch, while Amy's stuck teaching his trophy wife how to ride.
Tim is trying to convince Jack to be his partner in the purchase of a bison bull when Miranda comes to Heartland for a visit and goes on a trail ride with Tim that could totally change their family dynamic.
Janice brings Cisco Kid to Hearland for Amy to figure out why Cisco's lost that winning feeling.
Amy seeks out an up-and-coming show jumper to learn why he's refusing Scott and Ty's suggested treatment for his horse.
Chase Powers returns to Heartland with an aspiring liberty horse rider (Hayley) who wants Amy to be her coach.
When Ty needs some engine parts for his broken down truck he's forced to turn to the last person on earth he wants help from - his stepfather, Wade.
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 into a life-changing weekend for the entire family.
Amy and Ty hold off telling the family their great news when they return from their trip to find everyone reeling from the devastating fire at Lou and Peter's home.
Jeremy forces Amy to make a tough decision about Phoenix when his horse, Buckingham, sustains a serious injury that threatens his jumping career.
When a local horse show is cancelled Lou saves the day for Georgie and Mallory by stepping up to host it at Heartland.
Scott discovers that Spartan has a broken leg and Amy is forced to make the toughest decision of her life.
Ty's future as a vet is in jeopardy when there's a fatality at Scott's clinic.
In an effort to prove Jeremy was responsible for Buckingham's death, Ty searches for evidence.
Amy struggles with a horse that only bucks and Caleb's uncertainty about riding.
Georgie regains her confidence as a show jumper; Olivia questions her place in the family.
While the threat of losing Phoenix looms, Georgie is surprised by a visit from his brother Jeff.