Into the Unknown

Amy helps Nathan Pryce with a sheepdog competition while Heartland faces Pryce Beef competition and an impending water shortage, straining Lou, Jack, and Tim.

Caleb returns and helps Amy with a mysterious horse; the weather forces Lou to build a firebreak with the enemy.

The family faces the hard reality of a drought at Heartland and the hunt is on to find the best spot to build a new well. Meanwhile Katie worries about her grandfather's health.

The weight of the Hudson rumour mill leads Jack to make a surprising decision. While Amy works with a polo pony and sees a new side of Nathan in the process.

The whole family heads to the Hudson Rodeo. Emotions run high at the barn dance after Amy helps Nathan deal with a family emergency.

Lou, Amy and Lisa head to Vancouver for a girls' trip. Lisa is caught in the middle when truths are revealed between sisters that could threaten to tear them apart.

Amy works with a horseback-riding falconer whose horse is not getting along with her beloved trained hawk. Lou discovers the secret Katie's been hiding about her creative writing class.

Tensions boil over when Heartland and Pryce Beef face off at the Hudson Farmer's Market and Shane makes a surprise visit.

Jack and Tim try to mend fences with Nathan on a fishing trip; Amy and Caleb save a horse in distress; Lou finds herself in a dangerous situation.

Heartland hosts an Open House to bring the family and the community together, along with some old and new friends.