One year after Emergence Day, Gerrenhalt was one of the hundreds of cities across Sera targeted by the Hammer of Dawn to deny the Locust resources. A reporter went to the city hours before the strike to report on the evacuation, even though that would mean he would be killed in the attack. A few days after the strike, a Gear squad commanded by Sgt. Marcus Fenix headed toward Gerrenhalt in PA-Five-One to investigate the effects of the counterattack, but was unable to reach it because of the difficult terrain.