It's the third of the original 12 chapters in the series The Life and Times of Scrooge McDuck.

The story was first published in the Danish Anders And & Co. #1992-45; the first American publication was in Uncle Scrooge #287, in August 1994.

During a conversation with a man who owns some square eggs, the train is robbed by Jesse James and his gang.

He comes across some cowboys led by Murdo MacKenzie, transporting cattle and joins them, receiving his own horse, which he names after his sister Hortense, since they have the same bad temper.

He is placed in charge of security of a prize-winning bull, which is then stolen by the McViper brothers.