| Issue | #13 |
| Published | April 1942 |
| Cover Price | 0.10 USD |
| Pages | 68 |
| Editing | Stan Lee |
| Characters | Captain America [Steve Rogers]; Bucky [Bucky Barnes]; Japanese soldier (supposed to be Hideki Tojo?) |
| Genre | superhero |
| Pencils | Al Avison |
| Inks | Al Avison |
| Reprinted | in Marvel Masterworks: Golden Age Captain America (Marvel, 2005 series) #4 (2010) |
| Characters | Captain America [Steve Rogers]; Bucky [Bucky Barnes] |
| Synopsis | Illustrated contents page with short synopses for each story therein. |
| Genre | superhero |
| Pencils | Al Avison ? |
| Inks | Al Avison ? |
| Letters | typeset |
| Notes | Found on the inside front cover. Stan Lee is listed as editor for this issue. |
| Reprinted | in Marvel Masterworks: Golden Age Captain America (Marvel, 2005 series) #4 (2010) |
| Characters | Captain America [Steve Rogers]; Bucky [Bucky Barnes]; Prince Tsaihoon; Princess Yana; The League of the Unicorns (villains, introduction), King Unicorn Zong [Burton J. Hargraves] (villain, introduction) |
| Synopsis | A railroad boss poses as King Zong, leader of the League of Unicorns, an oriental criminal gang that wear helmets with spikes on their foreheads to slay enemies. Zong hopes to profit from sowing discord between China and the Allies, but Cap and Bucky defeat him and hand him over to police. |
| Genre | superhero |
| Script | Stan Lee ? |
| Pencils | Al Avison (signed) |
| Inks | Al Avison (signed) |
| Notes | The Masterworks edition lists Al Avison as penciller with inks by Syd Shores and George Klein. |
| Reprinted | in Marvel Masterworks: Golden Age Captain America (Marvel, 2005 series) #4 (2010) |
| Characters | Polly Tix; Mrs. Polly |
| Synopsis | Polly returns home from what he considers a dull ocean trip, but his wife discovers some hany-panky that went on. |
| Genre | humor |
| Script | Fred Schwab |
| Pencils | Fred Schwab |
| Inks | Fred Schwab |
| Letters | Fred Schwab |
| Notes | Sequence added by Craig Delich 2010-7-3. |
| Reprinted | in Marvel Masterworks: Golden Age Captain America (Marvel, 2005 series) #4 (2010) |
| Characters | Captain America [Steve Rogers]; Bucky [Bucky Barnes]; Sergeant Duffy; Betty Ross; un-named lighthouse keeper; The Looter [Mr. Phillips] (villain, introduction) |
| Synopsis | Cap and Bucky must stop the activities of 20th Century pirates who are able to block the beam of a lighthouse, causing ships to run aground so they can be looted by the criminals. |
| Genre | superhero |
| Script | Stan Lee? |
| Pencils | Al Avison (signed) |
| Inks | Al Avison (signed) |
| Notes | The Masterworks edition lists Al Avison doing pencils, George Klein as doing inks. |
| Reprinted | in Marvel Masterworks: Golden Age Captain America (Marvel, 2005 series) #4 (2010) |
| Characters | Grandpop Saunders; Tom Saunders; Blackie Dione [as Oliver Wentworth] (villain) |
| Synopsis | A notorious gunman and killer in disguise from Chicago appears one day in Butlertown, intent on buying a ranch.....but not just any ranch.....the ranch belonging to Grandpop Saunders, which has a fortune in gold in a mine located on the property. |
| Genre | adventure |
| Letters | typeset |
| Reprinted | in Marvel Masterworks: Golden Age Captain America (Marvel, 2005 series) #4 (2010) |
| Characters | The Imp; Jefferson Vandemeer; Dr. Sinn (villain, introduction, death) |
| Synopsis | The Imp tangles with Dr. Sinn, who has discovered a book on black magic which reveals magic words that makes Sinn the most powerful man alive! |
| Genre | humor; crime |
| Script | Stan Lee |
| Pencils | Chad Grothkopf [as Chad] (signed) |
| Inks | Chad Grothkopf [as Chad] (signed) |
| Letters | Chad Grothkopf ? |
| Reprinted | in Marvel Masterworks: Golden Age Captain America (Marvel, 2005 series) #4 (2010) |
| Characters | Headline Hunter [Jerry Hunter]; Lord Danvers; Herr Horner (villain); Cramm (villain, Gestapo agent) |
| Synopsis | A pair of Nazi agents enter the U.S. to kidnap a British newspaper publisher and take him to Germany, all to prevent the publishers' anti-Nazi articles from seeing print. |
| Genre | crime |
| Notes | The story title was taken from the contents page. |
| Reprinted | in Marvel Masterworks: Golden Age Captain America (Marvel, 2005 series) #4 (2010) |
| Characters | Captain America [Steve Rogers]; Bucky [Bucky Barnes] |
| Synopsis | Illustrated club page which encourages all Sentinels to keep fighting the enemy by purchasing U.S. defense stamps and supporting the Red Cross. |
| Genre | superhero |
| Letters | typeset |
| Notes | Sequence added by Craig Delich 2010-7-3. |
| Reprinted | in Marvel Masterworks: Golden Age Captain America (Marvel, 2005 series) #4 (2010) |
| Characters | The Secret Stamp [Roddy Colt] (introduction and origin); Tom Colt; Jerry Dash (reporter); Mr. Williams (banker); Spud Sickles |
| Synopsis | A group of criminals, who have stolen many defense stamps from Roddy Colt, are threatening to kill a local banker until he pays them $10,000. |
| Genre | superhero |
| Script | Stan Lee |
| Pencils | Don Rico (signed) |
| Inks | Don Rico (signed) |
| Notes | The Masterworks edition lists Don Rico as penciler and George Klein as inker. |
| Reprinted | in Marvel Masterworks: Golden Age Captain America (Marvel, 2005 series) #4 (2010) |
| Characters | Captain Amerioca [Steve Rogers] |
| Synopsis | Illustrated house ad encouraging readers to join Cap's Sentinels of Liberty. |
| Genre | superhero |
| Pencils | Al Avison ? |
| Inks | Al Avison ? |
| Letters | typeset |
| Notes | Found on the inside back cover. Sequence added by Craig Delich 2010-7-3. |
| Reprinted | in Marvel Masterworks: Golden Age Captain America (Marvel, 2005 series) #4 (2010) |