Alpha Flight (vol 1) #76 VF

Alpha Flight returns to Earth, but have to rush both Shaman and Puck to the hospital for injuries they've suffered. They soon learn that Llan the Sorcerer is creating havoc in Canada and they rush forward to battle his evil. They soon learn that they have been gone for three months and when they arrive at the scene of the evil, they also learn that there's a new government-sanctioned team in place called Gamma Flight, whose roster consists of Nemesis, Wild Child, Witchfire, Silver and Auric. Alpha Flight and Gamma Flight team up to battle all the zombies that Llan has resurrected and win the battle. Gamma Flight reveals that they have been ordered to arrest Alpha Flight if they ever return on Canadian soil.