Showcase #7
Showcase #7
Cover Credits
Artist: Jack Kirby

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Title: "Ultivac Is Loose"
Pages: 24

Feature(s):
Challengers of the Unknown (of Earth-1)

Writer/Artist: Jack Kirby

Reprinted In:
Challengers of the Unknown #75 (1970)
Challengers of the Unknown Archives Vol. 1 HC (2003)
Showcase Presents Challengers of the Unknown Vol. 1 TPB (2006)
Challengers of the Unknown Omnibus HC (2012)
Showcase Presents:Showcase Vol. 1 TPB (2012)
Challengers of the Unknown by Jack Kirby TPB (2018)

Feature Character(s)

Supporting Character(s)

Villain(s)

  • Felix Hesse and Floyd Barker (Ultivac’s creators; no further appearances)
  • Ultivac (a living computer; next appearance in DC Comics Presents #77)

Comments:
June is incorrectly shown with dark hair in this story.

Synopsis:
Felix Hesse, a war criminal, and Floyd Barker have created a living computer named Ultivac. Hesse asks the Challengers for help when the robot resists control. The Challengers agree to help, but Hesse is abucted out from under them. Ultivac creates Hesse doubles to act as agents in retrieving materials for him.

The Challengers enlist the aid of robotics specialist, Dr. June Robbins. Red and June trail one of the Hesse double back to Ultivac’s headquarters. June befriends Ultivac which allows Red, Hesse, and Barker to overcome Ultivac.

Rather than turn Ultivac over to the government, Hesse and Barker try to use Ultivac for their personal gain. Ultivac breaks loose and take June with him. He creates a double of himself which is destroyed by the Challengers, but June convinces him to meet humanity half way and work with them.

At a public hearing, an angry Hesse blasts Ultivac and kills Rocky in the process. Rocky is revived from the dead and Ultivac is converted into a immobile computer. June has earned the right to become a Challenger and joins the team.


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