Susie, Benny, and another person decide to open a forbidden container labeled as special security supplies, revealing an arsenal of weapons and medical kits. Their discovery brings a surge of confidence as the group prepares to defend themselves. However, a persistent, growing pounding noise beneath the hull signals an increasing threat outside. They weld the gangway shut and set spike traps to fortify the ship. Suddenly, the pounding stops, replaced by the sound of metal twisting. A giant container blocks their path as a zombie bursts through, prying open the iron gate and lunging toward Susie, leaving the group in immediate danger.