With Dallas, Gary Cooper revived his long-dormant association with westerns. Cooper plays ex-Confederate officer Blayde Hollister, who rides into Dallas in search of the men who killed his family and stole his land. Because he is considered to be an outlaw by the authorities, Hollister is compelled to switch identities with U.S. marshal Martin Wetherby (Leif Erickson). This ruse requires Hollister to explain his plan to Wetherby's lady friend, Tonia Robles (Ruth Roman). One by one, Hollister gets rid of the men responsible for the murders of his loved ones. The most formidable of his enemies, Will Marlow (Raymond Massey), proves to be a bit too clever to fall into Hollister's trap...at least until Marlow shows his hand in the final scene. There's more talk than action in Dallas, but Gary Cooper's laconic performance holds the audience's interest throughout.