Amy struggles with the arrival of a new horse whisperer in Hudson. Lou fears the worst when Jack contemplates retirement. Katie and River's friendship is put to the test.

Amy promises to teach Lyndy liberty but gets distracted when Nathan's mom makes a surprise visit. Jack takes Nate Sr. on one last ride with Rowdy. Katie agrees to go on a blind date.

Amy works with Lisa's sister, Tammy, and her Standardbred racing horse. Jack introduces Dex to the next step in bull riding. Lou has exciting new plans for the Dude Ranch.

When a publicity stunt goes wrong, Amy puts her feelings aside to support Winn. Lou challenges Katie's boundaries. As Tammy mends a broken heart, Lisa and Jack discover a troubling secret.