After twenty years living along the trail as a deputy U.S. Marshal, Joshua Walker takes a job as sheriff in Burrton Springs, Kansas so he can be closer to his sister. Only problem is, she no longer requires his protecting.

After the death of her father, Annie McPherson needs a change. She accepts a position as schoolmarm hoping her past won't catch up with her. Life is good, except for the pesky lawman who creates confrontations at every turn and continually questions her ability to adjust to life in the west.

When the irritating schoolteacher's past and present collide, dragging Josh into the turmoil, he has to decide who he's willing to defend.