Ty and Amy split the every two hour feedings 24x7. After a visit with Val, Lisa has second thoughts. Everybody makes it home for Christmas and Mallory's parents make the flight through the storm. This sets in motion a series of strange events, which results in some unusual team pairings. Bell wasn't paying his school fees. When they find him, they ask Amy to solve his problem. It's hard going at first, but Amy comes over to help and rubs the foal with the blanket that was on the dead foal, making him smell like the mare's foal.
Meanwhile, Georgie tries to move on after her break up with Adam by throwing herself into helping Amy with an underperforming cutting horse which Scott brings to Heartland. Ty assists Scott with the delivery, which is complicated by the fact that the foal is upside down. Mallory found a nanny cam and thought Lou was spying, but Lou never turned it on. Soraya moves to London to be with her boyfriend. They talk, and Kit congratulates him on getting accepted to two pre-vet university programs at the , and Grasslands Agricultural College. Ty asks Caleb to be his best man.
Jade, Georgie and Adam volunteer at the animal reserve. She is even seen riding past the cemetery where her mom was buried in the first episode. Tim shares a misunderstanding with Jack through a lack of communication. When Ty and Amy find Mrs. Ty's stepdad paid his tuition. They are not legally married.
Tara is a , and Badger is a boy who never talks. Tim brings sheep to Heartland. She finally decides to move to Paris. Amy and Ty head out to their dance, but Ty's truck breaks down. She finds him grazing at the side of the road relatively quickly, but doesn't notice the signs indicating recent pesticide application.
When she expresses this anger to Caleb, he kisses her and tells her that she thinks too much. Val asks Ashley to forgive her and give her a second chance and Ashley moves back to Briar Ridge. She is moody and temperamental, and Lisa asks Amy to figure her out, since Diva has been returned three times after being rehomed. The best ever and can't wait for season 12. Mallory and Jake stop by, looking for Kramer, Jake's black-and-white paint cow pony, who has a habit of escaping from pens by jumping the fences. But one of Tim's old girlfriends comes back and claims that Tim is the father of her son, Shane, and a paternity test says that he is. Tim and Jack step in to help out when Ty makes a bad decision about a new truck.
Jack and Lisa have a wedding reception. Jack agrees to Lou renovating, rather than replacing, the old cabins for her corporate equine retreat. Both dispute who won, because Tim won by going off-course during the race. In the end, Blair leaves with her boyfriend, with Amy accepting that Ty and Blair are just friends. Its so good not hearing bad language, seeing people popping in and out of bed with numerous partners, and this show actually teaches life lessons for our kids of love and understanding, and to work on getting along. Lou continues to try to keep Amy's schedule manageable, but Tim continues to interfere, promising service to people that Lou says will have to wait.
Meanwhile, Jack and Georgie visit the fishing cabin to find Tim and his new 'friend' and her trouble making daughter staying there. Ty discovers that the car is stolen. Ashley and Caleb continue to be at odds, and Amy brings Soraya into her and Ty's plans to get them back together. . Amy catches her and reveals that she's pieced together the mystery. But when a wounded horse has Scott flying his plane to British Columbia to tend to the animal, Ty tags along.
As time goes by, Val eventually gives Amy's methods a try and jumps a series of training fences. Amy tells her that she can not take on another horse. Back at the clinic, a vet victory for Ty proves bittersweet when he realizes that all he wants to do is share the experience with Amy. Caleb and Nicole are starting to warm up to each other but then Ashley returns unexpectedly. Amy seems concerned over Ty and Kit's budding friendship. She starts working at Maggie's to afford to live on her own. Ty and Amy work to treat the horse and Georgie intuits that the horse needs to be turned loose.
In the meantime, Amy is trying to help a horse named Duke, whose stable-mate died recently, by trying to get him to bond with Pegasus. While he is there, Ruth shows up, very upset that her father was brought to the ranch, revealing that Hank has Alzheimer's. Caleb tries bull riding after he and Ty make a bathtub fly. Jack remembers a promise he made his grandfather long ago, and decides not to sell any land. In the end, he decides to go, and does so at the end of the episode.
When Amy is gone, Mallory does a bit of jumping on Spartan, then takes him on a ride. When Amy turns around, a crowd has gathered to watch, with several individuals filming her. Badger is back and tries to fight for Mallory. Amy accepts the prince's offer to travel to Europe with his team for the World Equestrian Games. At dinner, Mallory reveals that Ty has earned his high school diploma and later tells Amy that he's at a crossroads, and asks if Amy has any plans. Val comes back and her cancer has returned. Amy agrees to come back that night to investigate further, and Ty comes with her at Jack's request.