Amy helps a Medieval jouster who was badly injured during a competition regain his confidence so he can compete again. When Georgie aces her written driving test, Tim steps up to give her driving lessons. Meanwhile, Ty and Amy consider breaking up with Caleb and Cass after a disastrous double date. And Lou stresses over Katie's first day of kindergarten and her daughter's decision to "marry" a little kindergarten friend that soon leads to a "divorce.

Amy and Ty work together to determine why Caleb's horse becomes ill during his treatment at Heartland. Meanwhile, Georgie pits her parents against each other to get permission to go on an "away" trip with some girls from the Extreme Team. And while Jack and Tim work together to bring the loft up to code as ordered by the insurance inspector, they discover unexpected interlopers.