Part One: Chapters 4 and 5 Summary

In chapter four, Lisa rises early and goes outside to plan the day. She finds that the car's tires are flat. Someone seems to have let the air out. Lisa is dismayed, but Todd quickly gets the tire pump from the garage. After they inflate the tires and have breakfast, Lisa does the dishes and tells Todd what supplies to gather to create a better defense for their house. Todd asks her about the word "logical" and Lisa tries to explain it to him.

Lisa and Todd make an alarm system with thread and tin cans. Then, they make warning signs, secret storage spaces in the house, and booby traps. After the day's work, they make invitations to a neighborhood militia meeting. When Lisa goes to give an invitation to her friend Julie, she finds the house...