After escaping the mall in Dead Center, the Survivors are stopped by a raised bridge. They encounter the Left 4 Dead Survivors taking shelter on the bridge, who inform the new Survivors that they will lower the bridge if the generator is refilled with gasoline. The Survivors make their way through the streets and buildings, past an interrupted wedding ceremony, through some sewers, to the generator, where they discover that one of the Survivors at the bridge has passed away. With combined effort from everyone, the generator is filled, and the Survivors are able to raise the bridge to continue their journey onwards in their stolen race car.