The two survivors are Tom and Tori, who were on their way to Reno, Nevada when a nuclear blast transformed most of the people into flesh-eating zombies. The blast also turned the environment into a post-apocalyptic wasteland, making survival a challenge.
When they arrived at a casino, Tom and Tori met a group of survivors who sought refuge there. Together, they realized that escaping the building was impossible due to the presence of the undead outside. They were forced to band together and defend themselves from the constant attacks of the walking dead.
As time passed, the survivors noticed changes among themselves. Some began to exhibit symptoms of the zombie virus and turned into the undead. The team quickly disintegrated as they turned on one another, leaving Tom and Tori to fend for themselves.
As they fought for survival, Tom and Tori stumbled upon a shocking truth that would change their fate forever. They discovered that the casino was built on an ancient burial ground, where a powerful force lay dormant, waiting to be awakened.
With the casino filled with zombies, Tom and Tori had to fight their way through the building to uncover the secrets it held. Their journey took them through the creepy caverns and tunnels beneath the casino, where they faced unimaginable horrors.
At the end of the film, Tom and Tori found themselves trapped in the casino with no way to escape. As the undead swarmed around them, they realized that they were doomed, and their fate was sealed in the nuclear apocalypse that devastated the world.