Comic Title: Detective Comics #317
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: July 1963
On Sale Date: May 29, 1963 Newsstand Date May 29, 1963
Source: House Ad, Batman Annual #5, Page 28

Copyright Date May 29, 1963
Source: Library of Congress, Periodicals 1963

Frequency: Monthly
Cover Price: $0.12
Page Count: 32
Editor: Jack Schiff

Title: "The Challenge of the Alien Robots"
Pages: 12

Feature(s):
Martian Manhunter (of Earth-1)

Artist: Joe Certa

Reprinted In:
Showcase Presents:Martian Manhunter Vol. 2 TPB (2009)

Feature Character(s)

• Martian Manhunter (last appearance in Justice League of America #20; next appearance in Justice League of America #21)

Supporting Character(s)

• Captain Harding (last appearance in Detective Comics #316; next appearance in Detective Comics #318)
• Diane Meade (last appearance in Detective Comics #316; next appearance in Detective Comics #319)
• Zook (last appearance in Detective Comics #316; next appearance in Detective Comics #318)

Villain(s)

• Jasper Dowd and his robots (no further appearances)

Synopsis:
When a group of alien-looking robots begin looting the town, J’onn J’onzz attempts to stop them. The controller of the robots, Jasper Dowd, has planned for the intervention of the Martian Manhunter and equipped the robots with weapons to stop him. Zook is able to save J’onn, but the robots get away with the loot.

Diane Meade, having seen Dowd in the crowd, follows the crook back to his island hide-out. She is captured, and Dowd sends the robots out for another job. When they return, J’onn is disguised as one of the robots. He takes the control device from Dowd and smashes it. This allows him to stop the robots, capture Dowd, and rescue Diane.