Comic Title: Action Comics #390
Publisher: DC (National Periodical Publications, Inc.)
Address: 909 Third Avenue, New York, NY
Cover Date: July 1970
On Sale Date: May 28, 1970 Copyright Date May 28, 1970
Source: Library of Congress, Periodicals 1970

Frequency: Monthly
Cover Price: $0.15
Page Count: 32
Editor: Mort Weisinger

Title: "The Self-Destruct Superman"
Pages: 12

Feature(s):
Superman (of Earth-1)

Writer: Cary Bates
Penciller: Curt Swan
Inker: George Roussos

Feature Character(s)

• Superman (last appearance in Superman's Pal Jimmy Olsen #130; next appearance in Flash #199)

Supporting Character(s)

• Lois Lane (last appearance in Superman's Pal Jimmy Olsen #130; next appearance in Superman #229)
• Jor-El (in flashback; last appearance in Superboy #162; no further appearances)

Other Character(s)

• The President of the United States (no further appearances)
• A presidential advisor (no further appearances)
• Fax-Or (a Kandorian; no further appearances)

Flashback Appearance(s)

• Kal-El (as a child on Krypton; last appearance in Superboy #140; next appearance in World's Finest Comics #65)

Synopsis:
An earthquake near the White House accidentally activates an anti-Superman weapon given to the President by Superman himself. Superman intended for the weapon to be used against him should he ever go mad. Using super-hypnosis, Superman blocked the knowledge of how the weapon worked from his own mind.

The weapon comes after Superman leading to a chase around the world and even through the time barrier. Eventually, Superman is contacted by a Kandorian who explains that the weapon was invented by Jor-El on Krypton. Fearful for his life, Superman begins to suffer from stress. He then realizes his own fear is killing him. He makes a stand against the machine. It self-destructs when Superman uses a helmet to alter his own brain waves.

Superman at last remembers an incident that occurred as a child on Krypton. Jor-El's weapon nearly killed young Kal-El, so Jor-El deactivated it. However, Kal-El developed an instinctual fear of the weapon which lasted his entire life.