The Colonel makes Dora the "mistress of Follyfoot", but she soon finds that running Follyfoot is quite different to just living and working there. Steve seems unwilling to help, and when the milk-horse Tansy refuses to eat, her problems are only just beginning.
The Buckley's buy their daughter a horse but they haven't a clue about horses and Barney turns out to be untrained. They gladly allow Dora to take Barney off their hands and tame him, however once he's been tamed they want him back.
The unscrupulous Sam Lockwood challenges Dora to a cross-country race, but he has assumed that all the horses at Follyfoot are old crocks. When he finds that they're not he tries to prevent her from winning.
When two young children, who go to Follyfoot for riding lessons, are orphaned their only surviving relative is their Uncle Joe. Dora and Steve track down Uncle Joe but Dora is very attracted to him, much to Steve's annoyance.
Dora becomes restless and disillusioned and looks to her future, but she also has the futures of those who depend upon her to worry about. It's not only a decision on if she should leave Follyfoot, it's also a question of if she can.