King Comics #27

In "The American Crusader" story, the Crusader and his allies battle foreign spies and saboteurs who have infiltrated a laboratory where they attempt to steal plans and plant a time bomb in a tank. The Crusader and his team fight off the enemy agents, with the Crusader becoming invisible to pursue the remaining villains. A girl operative helps expose a traitor in their midst, and the story culminates in an aerial chase where the Crusader pursues the escaping saboteurs in a plane, ultimately preventing them from completing their mission.