A Native American man arrives in Walnut Grove with his tribe, seeking medical attention for his ailing father. Doc Baker provides his best treatment for the Chief, but when certain community members refuse to let them stay in town temporarily, Charles proposes a secret plan with Doc Baker to keep the tribe safe – but it could have deadly consequences for everyone.

Reverend Alden offers 15-year-old Mary her first temporary teaching position in a backwoods community. Unfortunately, it ends up being one of the most difficult jobs a young girl could ever encounter. Now she must decide if her career – not to mention her family values – are worth putting up the fight of her life.