Newly appointed sheriff Pat Garrett is pleased when his old friend Doc Holliday arrives in Lincoln, New Mexico on the stage. Doc is trailing his stolen horse, and it is discovered in the possession of Billy the Kid. In a surprising turnaround, Billy and Doc become friends. This causes the friendship between Doc and Pat to cool. The odd relationship between Doc and Billy grows stranger when Doc hides Billy at his girl Rio's place after Billy is shot.
Buck Roberts is leading a wagon train of railroad supplies and Jim Corkle and his henchman Loder are out to stop them by using white men dressed as Indians for the attacks.
Richard Dix as Dan Taylor and Preston S. Foster as Paxton Bryce are two longtime friends seeking their fortune in Texas after the war. The two men decide, not without problems, to establish a cattle empire. Paxton becoming too ambitious, distances himself from Dan and Abby, Paxton's wife. It will only be after a personal tragedy that he will come back to his senses.
Billy and his pals, on the run from the law again, travel to Sage Valley where Billy is made Sheriff. The local outlaw gang is run by Kansas Ed who closely resembles Billy. Ed captures Billy and changing clothes with him, now plans to run the town as Sheriff.
Stanton breaks Billy and his two friends Fuzzy and Jeff out of jail. He wants them free so three of his men can impersonate them for the robberies and murders he has planned.
Cholita, after a long absence in Mexico City, is returning home to take up her duties as head of the rancho and, as everyone expects, to marry her childhood sweetheart José. Expectations are somewhat dashed as she shows up with Fernando to whom she is engaged. This makes José and Cholita's uncle more than a little bit put out as Fernando is not only not a Mexican, he is also a city slicker afraid of the country.
Billy the Kid and his pal Jeff help their friend Fuzzy Jones escape from jail, and the trio heads for Paradise Valley, where they find the Paradise Land Development Company, ran by Matt Brawley and Jack Saunders, is somewhat less than honest in their dealings with the homesteaders. They devise a plan to cause a split between Brawley and Saunders.
Williams is out to stop Ellen Goreham from completing her road that is under construction and is using a man to impersonate Billy the Kid. When Billy sees the wanted posters and learns of the murders he supposedly committed, he sets out to find the imposter. His sidekick Fuzzy is there to help him but his friend Jeff, now a Marshal, is also after him.
Escaping from the law once again, Billy, Fuzzy, and Jeff ride to the ranch of Jeff's uncle only to find another family living their. They soon learn of Cobb Allen's scheme where he sells a ranch, makes sure the rancher can't pay off his note, kicks him out, and resells the ranch. But Billy has a plan to recover the ranchers' money and he sends Fuzzy to town with a fake map to a gold treasure.
As a penalty for fighting fellow classmates days before graduating from West Point, J.E.B. Stuart, George Armstrong Custer and four friends are assigned to the 2nd Cavalry, stationed at Fort Leavenworth. While there they aid in the capture and execution of the abolitionist, John Brown following the Battle of Harper's Ferry.
Storm is out to wreck Ace's stage line. When Tex arrives to help Ace, Storm brings in hired killer Mule Bates. But Tex and Bates know each other and the two devise a plan to fool Storm.
Drifter Cole Harden is accused of stealing a horse and faces hanging by self-appointed Judge Roy Bean, but Harden manages to talk his way out of it by claiming to be a friend of stage star Lillie Langtry, with whom the judge is obsessed, even though he has never met her. Tensions rise when Harden comes to the defense of a group of struggling homesteaders who Judge Bean is trying to drive away.
Trouble in Colorado is tying up Union troops needed back east during the Civil War and Lieut. Burke is sent to investigate. Macklin and his gang are causing the problems and Capt. Mason joins them. When Burke catches up with them he also finds Mason, his brother.
Easterner Madeline Hammond buys a ranch not knowing Hayworth is using it to smuggle ammunition across the border. When trouble starts, she brings back Gene Stewart ex-foreman who left the country after fighting with the Sheriff.
Days of Jesse James is a 1939 American film directed by Joseph Kane and starring Roy Rogers. Bank robbery pulled off by the bank officials, not the usual James gang.