The protagonist battles zombies on the fifth floor, using a kitchen knife that soon breaks, prompting a search for better weapons. After clearing the area and finding supplies, including a baseball bat, Katie and Jack, who have been hiding nearby, try to scavenge for food but find nothing left. Jack persuades reluctant Katie to approach the protagonist for more food. When Katie arrives, the protagonist nonchalantly eats the food and reveals plans to leave, shocking her. Despite hostility, Katie returns later seeking a food trade. Meanwhile, the protagonist struggles to feed Emily, whose appetite unnerves him, leading to a stern warning about loyalty.