Ep 17. True Calling

Amy and Ty's plans to start a new Mustang training business take a hit when Ty learns that his mother, Lily, has taken a job at a rival stable to earn the money needed to keep their ranch from foreclosure. Meanwhile, Mallory tries to prove to her father that she is capable of running a campaign for a local politician, but she learns that politics can be a dirty game. Lou is still struggling to come to terms with her divorce, but her feelings are complicated when her ex-husband, Peter, comes to town with some surprising news. And Jack and Lisa take their relationship to the next level, but encounter a major obstacle when Lisa's ex-husband threatens to ruin their happiness. As tensions rise and emotions run high, the Heartland family must come together to overcome their obstacles and follow their True Calling.