When Merci Bruce brings a World War one airplane—a Curtis JN4 Jenny—to the Bruce Ranch in 1920, she couldn’t know the tragedy that would follow. The evening of her maiden flight, a large party crowded the main street of Two Dot, Montana. The next morning the body of the mechanic who traveled to Montana with the airplane is found on the boardwalk in front of the saloon. A hand written note is impaled upon the body by a German bayonet. Nate Hamilton neighboring rancher known to be enamored of Merci is soon charged with the killing. Merci is certain of Nate’s innocence as is Spencer Bruce, her attorney brother. Merci’s attention focuses on the bad tempered barkeep as the killer. But there are other possibilities, but nothing that Merci learns seems to tie the crime to any of them. When it comes time for the trial, Spencer and Merci's father, T. C. Bruce, who had long since traded his days as a trial lawyer for the life of a rancher, is drawn in to the courtroom to try to help save the young neighbor from the hangman's noose.