Holt of the Secret Service

A silent movie serial

Tom King Jr. seeks to discover who murdered his father, a Texas Ranger; the trail leads to a network of Axis spies.

Jerry Blake (aka Federal Operator 99) teams-up with Joyce Kingston to thwart the plans of escaped crime boss Jim Belmont.

An expedition arrives on an uncharted jungle island to rescue the local natives, led by a jungle boy, from a volcano that is about to erupt.

Escaped Prisoner 39013 impersonates the rich and influential Horace Granville, allowing him to create a variety of disasters. Fortunately, he is thwarted repeatedly by three daring circus daredevils.

Two British officers are assigned to collect information to convict Captain Kidd of piracy.

Mota is a Martian representative, who has come to impose interplanetary law on the Earth (which has become too dangerous); opposing his authority is Kent Fowler, who resists the alien plot, without understanding its details.

Dr. Mabuse and his organization of criminals are in the process of completing their latest scheme, a theft of information that will allow Mabuse to make huge profits on the stock exchange. Afterwards, Mabuse disguises himself and attends the Folies Bergères show, where Cara Carozza, the main attraction of the show, passes him information on Mabuse's next intended victim, the young millionaire Edgar Hull. Mabuse then uses psychic manipulation to lure Hull into a card game where he loses heavily. When Police Commissioner von Wenk begins an investigation of this mysterious crime spree, he has little to go on, and he needs to find someone who can help him.

Prior to the United States' involvement in World War II, the masked vigilante Spy Smasher fights Nazi agents operating within the US, led by the treacherous sabotage leader codenamed The Mask.

A young girl journeys to Africa to find her father, an explorer who vanished in the jungle.

Beyond Hell's Gate Pass is territory controlled by a man who calls himself King Carter; he uses a variety of schemes to prevent the railroad from being built, for fear it will finish his control of (what he considers) his land.

The obsessive scientist Dr. Miller is working on a matter-transmitter invention called the Paratron; a conspiratorial team of spies and no-goods pursue him to Alaska, trying to steal the device.

Dusty Bates observes some smuggled jewels hidden in a crate aboard a ship; he is pursued by low-lifes when the crate is put ashore.

Wealthy Irving Randolph is falsely denounced as a deliberate murderer by his greedy younger brother when Randolph, during a rifle shooting contest, accidentally kills a man with whom he has had an altercation. Fleeing to Australia, Randolph becomes known as the bandit Stingaree and is aided in his Robin Hood like adventures by his friend Howie and his sweetheart Ethel.

The movie serial sequel to the popular original series featuring Stingaree. Both are now lost.

A 12-episode serial in which Tailspin Tommy evades volcanoes, anti-aircraft shells, and time bombs as he foils a plan by corrupt profiteers to steal an island's oil reserves.

An escaped criminal impersonates a Police Commissioner, causing no end of trouble to a determined Federal Agent.

During an historic counter-terrorism summit in Spain, the President of the United States is struck down by an assassin's bullet. Eight strangers have a perfect view of the kill, but what did they really see? As the minutes leading up to the fatal shot are replayed through the eyes of each eyewitness, the reality of the assassination takes shape.

Calvin Drake employs a group of low-lifes to drive away land owners along the path of a new railroad; Red Ryder opposes this strategy.

Veteran Secret Service agent Frank Horrigan is a man haunted by his failure to save President Kennedy while serving protection detail in Dallas. Thirty years later, a man calling himself "Booth" threatens the life of the current President, forcing Horrigan to come back to protection detail to confront the ghosts from his past.