Willis Newcomb and Bart Carroll head a gang engaged in smuggling wanted-American criminals back into the United States from Mexico. Operating from Sharperville, an oil town on the American side of the border, they transport their human cargo in oil drums loaded on trucks. Border Patrolman Tom Sharper intercepts one of the trucks but is overpowered and left for dead. Carroll, having already been paid for the job and not wanting any evidence to walk around, get caught and lead back to him, backs the human-cargo trucks to the edge of a cliff and sends the drums crashing to the boulder far below. Judge Cookie Bullfincher and Border Patrolman Roy Rogers conduct a search for the missing Tom, but the crooks have gone back for him and find him in a state of amnesia. They rob the bank and pin it on Tom. It is now up to Roy to clear his friend and also put an end to Carroll's human-smuggling racket.

Roy is an oil prospector. His efforts to get drilling rights on an old Spanish land grant are countered by gamblers from an off-shore gambling boat determined to control the land (and oil) themselves.

Wildcat Kelly has been dead and buried for years. Or has he? Dale is a reporter for an Eastern magazine who comes West to find out the true story of Kelly, of whom Gabby seems to have mysterious knowledge.

Sandwiched in between the numerous musical numbers, the Gabby Whittaker and Madden rodeo's are competing for bookings. When Gabby gets a date in Albuquerque, Madden has his man destroy his equipment. Roy finds a broken rawhide rope at the scene and uses it to bring Madden to justice.

When John Barrabbee's plane makes an emergency landing, he wanders off and joins Roy's cattle drive. Later he learns he was killed when his plane resumed its flight and crashed. He also learns his daughter is going to sell his ranch and marry a man he dislikes. So he gives Roy a job on the ranch and sends him off to see if he can prevent both of these events while he remains in hiding. Written by Maurice VanAuken Western girl moves east and influenced badly by her snobby fiance. She returns to sell her deceased father's ranch. The father isn't really dead, though; he's hoping that his friend Roy can restore the girl's western values. Songs include "New Moon Over Nevada," "A Cowboy has to Yodel in the Morning," and "The Harum Scarum Baron of the Harmonium." Written by Ed Stephan

Roy Rogers, a Nevada State Ranger Captain in charge of the Rangers Reclamation Service, makes a trip to Las Vegas for the annual Heldorado Frontier Days Festival, as he wants to help his old friend Gabby Whittaker who originated the idea (at least, in this film).In Las Vegas, Roy meets heiress Carol Randall, who has been selected as the Queen of the Heldorado. Roy is informed that the F.B.I. wants an immediate investigation of the counterfeit thousand dollar bills that are being passed over the gambling tables at the casino.

In Roy Rogers' Down Dakota Way, the deadly hoof-and-mouth disease has struck the herd owned by evil rancher H. T. McKenzie (Roy Barcroft). To avoid an expensive quarantine on his stock, McKenzie plans to murder the local veterinarian (Emmet Vogan) before the latter can report his findings to the government. Rogers manages to straighten out the situation by appealing to the sensibilities of the aunt (Elizabeth Risdon) of McKenzie's hotheaded hired assassin (Byron Barr). The film also bears several musical numbers from Roy, Dale Evans, and Foy Willing and the Riders of the Purple Sage.

Gridley is mining silver from an old Mexican mine and bringing it into the USA thru a passage into his worthless mine. Border guard Rogers suspects Gridley and finally finds the secret entrance to the Mexican mine. He sends Lee Madison for help only to have her captured by Gridley. Trigger brings help that takes care of Gridley's men and now Roy has to rescue Madison.

Peter Potter Jr. returns to claim his father's gold, which is nowhere to be found.

In the grand tradition of Disney's great musical classics, Melody Time features seven timeless stories, each enhanced with high-spirited music and unforgettable characters. You'll be sure to tap your toes and clap your hands in this witty feast for the eyes and ears.