Episode 03. Breaking Free
Heartland has its first "Open House" and Lou invites their dad and he accepts the invitation. Amy works with Lisa's horse Promise and Val accuses Amy of giving Promise drugs to make him calm for the "Open House" and after Amy proves Val wrong Val has to eat her words.
Jack kicks Tim off of the property. Meanwhile, Pegasus is depressed because of Marion's death. After Lou and Amy put their mother's jacket beside Pegasus' stall, he gets better.
Watch episodes 4 & 5 here