Comic Title: Detective Comics #338
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: April 1965
On Sale Date: February 25, 1965 Newsstand Date February 25, 1965
Source: House Ad, 80 Page Giant #9, Page 73

Copyright Date February 25, 1965
Source: Library of Congress, Periodicals 1965

Frequency: Monthly
Cover Price: $0.12
Page Count: 32
Editor: Julius Schwartz

Title: "Batman's Power-Packed Punch"
Pages: 15

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

Writer: Gardner F. Fox
Penciller: Sheldon Moldoff
Inker: Joe Giella

Reprinted In:
Batman:The Dynamic Duo Archives Vol. 2 HC (2006)
Showcase Presents Batman Vol. 1 TPB (2006)

Feature Character(s)

• Batman (last appearance in Brave and the Bold #59; next appearance in Batman #171)

Supporting Character(s)

• Robin (last appearance in World's Finest Comics #148; next appearance in Batman #171)
• Commissioner Gordon (behind-the-scenes; last appearance in Brave and the Bold #59; next appearance in Batman #172)

Villain(s)

• Bull Fleming and his gang (Chuck named; no further appearances)

Other Character(s)

• Orval Manning (a lumber dealer; no further appearances)
• David (a bank vice-president; no further appearances)
• A lab scientist (no further appearances)

Synopsis:
While touring the lab at the Alfred Foundation, Bruce Wayne's hands are exposed to a new chemical, X-23. As Batman, Bruce discovers that the chemical has given his hands super-strength. Batman and Robin chase a gang, with Batman using his new power-punch to stop them. Batman's new power slowly wears off, and he returns to normal.