Marvel Masterworks: Golden Age Captain America #4

In "The League of the Unicorn!" from Marvel Masterworks: Golden Age Captain America #4, Captain America and Bucky uncover a devious plot when a railroad boss masquerades as King Zong, the mythical leader of a gang of masked criminals known as the League of Unicorns. With their spiked helmets and sinister schemes, the League aims to destabilize relations between China and the Allies—only to be stopped by the patriotic duo, who bring the imposter to justice.

In "The Lighthouse of Horror," Captain America and Bucky face a sinister threat from 20th-century pirates who sabotage a coastal lighthouse, using the darkness to lure ships to their doom. With the beam silenced and the waters treacherous, the duo must uncover the criminals’ hidden operation before more lives are lost.

In this quirky 2010 tale from *Marvel Masterworks: Golden Age Captain America #4*, the Imp finds himself outmatched when he crosses paths with the eccentric Dr. Sinn, a man who’s stumbled upon a mysterious book of black magic—and the power to command it with a single incantation. With the fate of his schemes hanging in the balance, the Imp must think fast before Dr. Sinn’s newfound magic turns the tables for good.

In "The One Man Invasion!" from Marvel Masterworks: Golden Age Captain America #4, a pair of Nazi agents infiltrate the U.S. with a dangerous mission: kidnap a British newspaper publisher whose anti-Nazi writings threaten to expose their plans. With the fate of a free press hanging in the balance, Captain America must stop them before their secret operation reaches its chilling conclusion.

In "The Horde of the Vulture!", Steve Rogers and Bucky Barnes race across the desert to Camp Mojave, only to be ambushed by a traitorous American known as the Vulture—leading a band of Native American fighters loyal to the Japanese. As the duo fights to survive the ambush, they must unravel the Vulture’s twisted allegiance before the enemy’s plan can strike.

In "The Three-Man Blitzkrieg," Jo and her friends Roddy and Spud find themselves caught in a high-stakes showdown when Roddy’s rivalry with Spud over selling defense stamps takes a dangerous turn—three Nazis sabotage key city infrastructure, threatening to plunge the city into chaos.

In "The Tunnel of Terror!", Captain America and Bucky race to stop a Nazi sabotage operation beneath the East River, where enemy agents are mining a tunnel to undermine New York City’s defenses. With the city’s morale under siege and a hidden Fifth Column working to weaken American resolve, the duo must outwit enemy spies before the underground threat erupts above ground.

In "The Invasion from Mars," Captain America and Bucky confront a Martian invasion of Gotham City, but Cap's instincts kick in when a seemingly alien weapon reveals a shocking secret—beneath the extraterrestrial guise lies a German Lugar in disguise. The duo must unravel the deception before the real threat takes hold.

When Roddy stumbles upon a shocking twist—another "Secret Stamp" in the hands of Nazi spies ordered to eliminate the hero—he finds himself caught in a dangerous game of deception and daring. The mystery deepens as the true identity of the Secret Stamp remains hidden, and the stakes rise with every page.

In "The Horror of the Seas," Captain America and Bucky face a chilling mystery beneath the ocean’s surface, where a hidden undersea civilization worships their goddess Lai-Son and sacrifices coastal townspeople under the command of a Nazi operative. As the duo dives into the reef’s depths, they uncover a temple of ancient dread and a plot that threatens to unleash a terrifying invasion from below.

In "The Imp and the Pirates," young Jefferson teams up with the mischievous Imp on a swashbuckling quest for buried pirate treasure, only to find themselves pursued by a ruthless crew determined to keep the loot for themselves. With quick wits and daring escapes, the duo must outthink their enemies on a dangerous island adventure.

In "Red Skull's Deadly Revenge," the iconic villain sets a cunning trap for Captain America, succeeding in capturing him and seizing his identity—posing as the star-spangled hero to undermine America's symbol from within. The story unfolds as the Red Skull's deception threatens to unravel everything Cap stands for, all while the real hero fights to reclaim his legacy.

In "Murder in Cross Lane," Jo, a young woman with a sharp eye for truth, finds herself caught in a web of suspicion when her friend Jerry Dash is framed for murder. With a mob closing in and justice hanging in the balance, the Secret Stamp steps in to protect the innocent—before the truth becomes a casualty.