The best Jason Robards Sr.’s adventure movies

An American pilot with a top-secret invention is kidnapped by foreign agents.

A shipwreck victim washes up on a homicidal big-game hunter's Caribbean island.

A private detective foils the plans of villains attempting to take over Panamanian oilfields when he hides a valuable map in plain sight.

Gregory is a phony government agent issuing worthless checks. To keep from being exposed he has his men dress as Indians and attack anything bringing mail. This leads to an Indian war. White Eagle, a pony express rider, exchanges his buckskins for his native Indian garb, and sets out to end the war.

A society sleuth sets out on the trail of a society matron's lost jewels.

A young lawyer is elected mayor of the city and promises to rid it of the corruption it's famous for. The problem is that most of the corruption he's vowed to eliminate is caused by the crooked political machine that helped elect him.

Although young and beautiful, schoolteacher Anne Gladden fears a dull future. She finally decides to take a walk on the wild side, splurging on some fashionable new clothes and setting off to find adventure. Her new confidence inspires her to flirt with complete strangers. When a gangster pays unwanted attention to her, she ditches him and flees in his car, unaware that there's a corpse in the trunk. Determined to recover his stolen vehicle and its incriminating cargo the thug begins a desperate search. The oblivious Anne, comes to the aid of a handsome young man stranded alongside the road. Romance blooms, but after the shocking discovery of a body in the trunk, the duo decide they have to return the car. The bickering lovebirds head back to the city, trailed by both the angry gangster and the cops, who suspect the young couple of murder.

Filmed in the Sierra Nevada mountains near Sonora, California, this Universal serial is Universal's 40th sound-era serial. Eagle Scout Bruce Scott, leader of Martinsville Troop Number One, and his pack sets off in search of lost treasure and finds adventure

Dr. Robert Cromwell performs a delicate operation, that has never been done before, and the patient dies. Charged with malpractice and manslaughter, his trial is national news but the jury acquits him. But the court of public opinion is still against him, and the medical board is meeting to decide whether or not to take his medical license away from him. Before they do, Cromwell, an amateur pilot, decides to join his friend, WWI Ace Donald Evans, on a flight to Alaska looking for a shorter route to Japan by following the Aleutian Islands. They crash in Alaska and Evans is killed, but Cromwell is rescued by a fur trapper named Tom Ross. He takes Cromwell to Armstrong's Trading Post, where is is nursed back to health by Klondike, a girl who works for Armstrong, and was engaged to marry Armstrong's son Jim. The latter is suffering from the same disease that Cromwell's last patient had...

Crooks plot to steal a payroll being shipped by air.

"Tailspin Tommy" Tompkins and "Skeeter" Milligan are training young U. S. Army fliers for the newly-formed 'Sky Patrol,'a branch of the Army Reserves which operates along the borders and coast-lines, on the lookout for smugglers. Carter Meade, whose father is the Colonel in charge of the patrol, has a terror of firing guns and his father insists he conquer this fear. Tommy sends him out on patrol, on orders from Washington D. C., to stop any unfamiliar aircraft. Carter challenges an unmarked amphibian plane, which opens fire on him. Carter, afraid to shoot, bails out as his plane is shot down. Carter is missing, and Tommy and Skeeter are searching for him and the mysterious airplane.

Mickey Lofton, young half-brother of famed war-aviator Jerry, fails in his attempt to enter the Canadian Air Corps, because of his fear of thunderstorms developed by an incident in his boyhood days. Jerry, now a Captain in the U.S. Department of Justice, is given an assignment to capture some border oil smugglers. Through his friendship with Raoul McGuire, one of the suspects, Jerry is accepted as a member of the gang. Mickey is in love with Raoul's sister, Molly. Gang leader Moran shoots and wounds Raoul, and is himself shot down by Jerry. Mickey flies Molly and her wounded brother to a hospital. Jerry takes off in another plane to guard Mickey's craft from a pursuing airplane, and crashes his plane into the gangster's plane but parachutes to safety.

The second of a series of four features Monogram made based on the comic strip by Hal Forrest (Universal also used the strip characters in two serials), finds a movie company shooting a war picture at Three Points airport, with Tailspin Tommy Tompkins as a stunt pilot in the film. Tommy is incensed by the complete disregard for human life shown by the film's director, Sheehan, and quits. Sheehan gets a replacement pilot named Earl Martin, who is known as a reckless pilot who will try an aerial stunt for a thrill. He hand Tommy get into a fight when Martin takes Betty Lou Barnes for a ride in a plane that is practically falling apart.

A shipful of fugitives from justice pulls up on a Pacific Island where there are no extradition laws. The island is a magnet for the scum of the earth, as well as a few honest guys who were framed. Into this den of iniquity swims socialite Dorothy Sebastian, who jumped off a yacht after apparently murdering her lecherous host. To remain on the Island, Sebastian is told that she must pay $5,000 to head honcho Fred Kohler -- and if she hasn't got the money, it is implied, there are other methods of collection.