When their car breaks down, Carol goes looking for some water but is attacked and mauled by the zombies. Bo tries and fails to save her when she becomes zombified after her legs are torn off by zombies lurking beneath the surface of the water. Bo is forced to flee when more zombies emerge from the lake. He eventually joins up with Patricia and Glenn. On the way to Santa Monica Hospital, Glenn dies and reanimates as a zombie on a bridge. During the resulting confrontation with the living dead, Bo is killed, but Patricia escapes with her life. Back at the covert lab, Dr. Holder and his team start work on an antidote to counter the effects of Death One. Meanwhile, Morton's men initiate a blanket operation to eradicate the zombies, which the extermination teams now identify by the codename "locusts" in reference to the zombies' behavior pattern of swarming from town to town while stripping away everything in their path.