Little Brother - S4.E15

Wyatt's younger brother, Morgan Earp, visits Dodge City and is immediately involved with Doc Holliday in a scheme to rescue the outlaw Smiley Dunlap, who is being held prisoner by Greg Norton and his gang. Wyatt's task of saving Morgan and Doc from being killed is made harder by his desire to keep his little brother from knowing he had a hand in rescuing the rescuers.