Comic Title: Blackhawk #108
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: January 1957
Approx. On Sale Date: November 6, 1956 Copyright Date November 4, 1956
Source: Library of Congress, Periodicals 1956
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.

Frequency: Monthly
Cover Price: $0.10
Page Count: 32
Editor: Jack Schiff

Notes:
DC takes over publication of Blackhawk from Quality as of this issue.

Title: "The Threat from the Abyss"
Pages: 9

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

Penciller: Dick Dillin
Inker: Charles Cuidera

Reprinted In:
Showcase Presents Blackhawk Vol. 1 TPB (2008)

Feature Character(s)

• Blackhawk (first Earth-1 appearance; last appearance in Crisis on Infinite Earths #5; next appearance in Blackhawk #108)

Supporting Character(s)

• The Blackhawks (first Earth-1 appearance; last appearance in Crisis on Infinite Earths #5; next appearance in Blackhawk #108)
• Hendrickson (first Earth-1 appearance; last appearance in Crisis on Infinite Earths #5; next appearance in Blackhawk #108)
• Stanislaus (first Earth-1 appearance; last appearance in Crisis on Infinite Earths #5; next appearance in Blackhawk #108)
• Andre (first Earth-1 appearance; last appearance in Crisis on Infinite Earths #5; next appearance in Blackhawk #108)
• Chuck (first Earth-1 appearance; last appearance in Blackhawk #239; next appearance in Blackhawk #108)
• Olaf (first Earth-1 appearance; last appearance in Crisis on Infinite Earths #5; next appearance in Blackhawk #108)
• Chop Chop (first Earth-1 appearance; Liu Huang; last appearance in Blackhawk #239; next appearance in Blackhawk #108)

Villain(s)

• Dr. Ivan Algov and his men (no further appearances)

Other Character(s)

• Various Navy officers (no further appearances)

Comments:
This is considered the first appearance of the Earth-1 team of Blackhawks. The adventures published by Quality are said to be that of the Earth-2 and/or Earth-X Blackhawks.

Synopsis:
When several ships disappear at sea the Navy calls in the Blackhawks to determine the cause. Blackhawk escorts a dummy ship along the same course as the ones that have disappeared. He witnesses the ship destroyed by an atomic warhead launched from under the sea. The Blackhawks bomb the area, believing the warhead was launched from a sub. Further investigation reveals a Soviet missile station on the ocean floor. The Blackhawks raid the station and destroy it, capturing the Soviet missile expert Ivan Algov in the process.