While her father is away fighting the Normans and other Irish clans, nine-year-old Lara works hard to help harvest food and also cares for the pregnant gray mare that she loves.

Orphaned at age six and taken in by a heartless couple, nine-year-old Katie Rose spends her days doing chores and dreaming of going west to find her Uncle Jack. Then Mr. Stevens brings home an unbroken Mustang, and Katie's world changes. Katie is drawn to the horse's wildness, and he seems to sense her need for companionship. So when Katie learns that the Stevenses plan to join the expansion West, without her or the Mustang, she makes a desperate...

After returning home with her horse from Connemara, Lara no feels that her old life has anything to offer, so she tries to find another place for herself and her horse which is safe from the warring clans.

In the Colorado Territory in 1875, orphan Margret and her older sister Libby are staying with the kind-hearted Mrs. Fredrickson when Margret finds an injured horse which she nurses back to health and wants to keep, while Libby is too mistrustful of people to think that they might possibly have found a home.