 Initially , the living conditions of the Robinsons varied according to whether or not they had had time to prepare . There were roughly three days between the signing of the capitulation and the deadline for civilians to leave the city , during which those who made the decision to stay could stockpile food and water , and camouflage their hiding places . As time passed , supplies ran out , and many Robinsons had to change their locations for security reasons . The situation soon became equally desperate for all who remained . 
