1st appearance of the Clown (villain)
1. The Clown (13 pages) - Featuring Magno by Jim Mooney
2. "Sky Smith, air soldier of fortune, flying from coast to coast..." (10 pages) - Featuring Sky Smith by Maurice Gutwirth
3. "One night as Vulcan streaks over a small town near the Great Lakes..." (12 pages) - Featuring Vulcan by Jack Binder
4. "Arnold Rire, foreign spy, has stolen charts of U.S. fortifications." (10 pages) - Featuring Agent Q-13
5. Bullet Boomerang (2 pages) by John Dallas
6. "In the office of district attorney Ralph Nelson..." (10 pages) - Featuring Black Spider
7. "In the sleeping quarters of the mini-sub at midnight..." (7 pages) - Featuring Captain Gallant
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