The Invisible Man 4
Superman's allies continue their fight against a corrupt district attorney while an unseen enemy uses invisibility to interfere with their efforts.
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Superman's allies continue their fight against a corrupt district attorney while an unseen enemy uses invisibility to interfere with their efforts.
Clark Kent's unusual behavior alarms his friends just as the Invisible Man places them in fresh danger.
Clark exposes the Invisible Man's identity, but the victory is immediately followed by a new mystery when an armored car carrying millions in gold vanishes.
After rescuing Lois, Superman presses closer to the truth behind the missing gold shipment, only for the investigation to uncover another immediate danger.
Clark Kent and Lois Lane survive an assassination attempt and confront another mysterious disappearance while tracing a missing shipment of gold.
Clark Kent and Lois Lane investigate a bizarre case in which both people and a valuable gold shipment seem to disappear without leaving any trace.
Superman follows the mystery of missing people and a vanished fortune until the clues point toward a dangerous criminal mastermind.
While probing the disappearance of a freight car loaded with gold, Superman discovers that a replacement shipment and Jimmy Olsen are both being targeted by the same conspiracy.
Superman uncovers a train robbery and races to prevent the thieves from destroying a bridge as part of their escape.
Superman stops a train robbery and an attempt to demolish a bridge, only to discover that a new threat is developing at the Daily Planet.
Clark Kent and Jimmy Olsen investigate a series of strange accidents at an oil field, each accompanied by the ominous howl of a legendary coyote.
Superman and his friends investigate the mysterious coyote howl and discover that the old legend is being used in a dangerous scheme tied to an oil fortune.
A tribal ceremony becomes deadly when Jimmy Olsen is singled out by a hidden enemy, forcing Superman to act before the plot succeeds.
Rawson's scheme against Jimmy Olsen places the boy on a treacherous horseback ride through a fierce blizzard, leaving his life in immediate danger.
Superman battles through a severe blizzard to reach Jimmy Olsen after the boy is critically injured.
Superman struggles through a blizzard to get the badly injured Jimmy Olsen and Tumbleweed to medical help in time for a lifesaving operation.
Superman must rescue Jimmy Olsen while investigating the eerie howling that is threatening an Indian oilman's ranch.
Comanche Joe confronts a devastating fire at his oil field while an enemy uses the surrounding mysterious incidents to advance a plot against him.
Superman tries to save Comanche Joe from a seemingly supernatural threat created by the sinister figure known as the Coyote.
Superman investigates a series of strange incidents and repeated attempts on the life of Indian oilman Comanche Joe.
Tumbleweed Jones, Rawson and Comanche Joe are trapped inside a collapsing cave and must fight to survive before the chamber gives way completely.
While Clark and Jimmy recover from their own ordeal, their friends become trapped in fresh danger and desperately appeal to Superman for help.
With air running out inside a collapsing mountain cave, Superman races to reach his trapped friends before the chamber becomes their tomb.
Superman frees his friends from a collapsed mine and finally brings the strange mystery of the howling coyote toward its explanation.
Clark Kent follows an explorer's ominous warning to a magic performance where the man disappears under impossible circumstances.
Clark Kent and Jimmy Olsen investigate the disappearance of a British explorer during a magic show in an apparently abandoned theater, leading Superman toward a sinister explanation.
Clark Kent investigates explorer Sidney Rycroft's disappearance and a baffling case involving a vanishing act and uncertainty over someone's true identity.
Superman races to rescue explorer Sidney Rycroft from fanatics convinced that she possesses a sacred ancient object.
Superman follows clues involving a missing explorer and a patient who vanishes mysteriously, drawing him toward a dangerous confrontation.
Superman saves Tumbleweed Jones after his car plunges into a river, but Tumbleweed is kidnapped again by someone connected to the disappearance of explorer Sidney Rycroft.
Clark Kent identifies the truth behind a mysterious explorer while Tumbleweed Jones becomes trapped between rival groups competing for a valuable black pearl.
Superman races to protect Tumbleweed Jones after a mysterious threat follows him onto an airplane preparing to depart.
Superman prevents an airborne attempt on Tumbleweed's life while Clark Kent turns his attention to the strange disappearance of an entire theater.
Clark Kent discovers the secret behind a disappearing theater, but the investigation leaves him and his companions trapped with the enigmatic Sidney Rycroft.
Superman confronts an Egyptian cult leader determined to recover a sacred black pearl hidden among Clark Kent, Jimmy Olsen, Tumbleweed Jones and Miss Rycroft.
Clark Kent and Perry White are drawn into a dangerous search involving ancient jade relics and a secret said to offer everlasting life.
Clark Kent and Perry White investigate an enigmatic Oriental scholar and ancient jade artifacts, drawing them into a dangerous mystery.
Superman investigates a poisoning tied to mysterious Chinese artifacts while the case also threatens to expose the secret of his true identity.
Daily Planet reporters investigate a scholar's murder and the disappearance of legendary jade artifacts while an urgent call goes out for Superman's help.
Superman investigates an art collector's murder after a deceptive telegram sends Lois Lane and Perry White into a trap involving an impostor Superman.
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