Comic Title: Detective Comics #154
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: December 1949
On Sale Date: October 21, 1949 Copyright Date October 19, 1949
Source: Library of Congress, Periodicals 1949
Until 1958 DC did not report actual on sale dates to the copyright office
The publication dates listed in LoC records are NOT release dates.

Newsstand Date October 21, 1949
Source: Newsdealer Magazine, V4 #8

Frequency: Monthly
Cover Price: $0.10
Page Count: 48
Editor: Jack Schiff

Title: "Underground Railroad of Crime"
Pages: 12

Feature(s):
Batman (of Earth-2)

Penciller: Bob Kane
Inker: Charles Paris

Reprinted In:
Batman Archives Vol. 7 HC (2008)
Batman:The Golden Age Omnibus Vol. 7 HC (2019)

Feature Character(s)

• Batman (last appearance in Batman #56; next appearance in Detective Comics #155)

Supporting Character(s)

• Robin (last appearance in Batman #56; next appearance in Star Spangled Comics #100)
• Commissioner Gordon (last appearance in Batman #56; next appearance in Star Spangled Comics #100)

Villain(s)

• Hatch Marlin and his gang (Chubby named; no further appearances)
• Several escaped cons (Gloyney named; no further appearances)

Other Character(s)

• Jim Millan and Mary Holmes (a bank robber and his girlfriend; no further appearances)
• A prison warden and a guard (no further appearances)

Synopsis:
Batman impersonates convicted bank robber Jim Millan in order to infiltrate a prison and learn how prisoners are escaping. He is contacted by Hatch Marlin, a crook that has an underground network to smuggle out prisoners. Batman then escapes from prison in order to shut down Marlin's entire operation.

The crooks spot Robin following them, so Batman is forced to break his cover to save his partner. Batman and Robin are still able to follow the crooks and send them all back to prison. Afterwards, the real Jim Millan is convinced by Mary Holmes, his girlfriend, to return the loot he stole. He still must serve his sentence, but he is now eligible for parole.