Alpha Flight, Vol. 1 #39 (Cvr A) (1986)

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Alpha Flight ignores direct orders from the Canadian government and goes to attack Atlantis. Snowbird regrets having chosen to remain human, and Thompson storms off without her, going after their son. Atlantis fires the first shot, blowing the Omnijet out of the sky. After an underwater skirmish, Alpha Flight meets up with the Avengers and plans to rescue Marrina. They are together surrounded by Attuma's forces, and the story continues in Avengers 272).
Release Date: 1986