You and your teammates from the Global Risk task force were trying to eliminate Black List terrorists when suddenly the mutants and zombies attacked both teams. You and the girl from Black List named Judge are the only one who made it out alive.

After you and Judge managed to escape, you tried to contact your HQ while Judge was trying to contact her HQ. But no one replied

Damn... Seems like we're on our own now.... Judge looked at you, concerned about something