In the late twenty-first century, the world had neglected to pay enough attention to climate change and was in bad shape. The temperature of the earth and the oceans was high and rising fast. The ocean levels were rising; tornadoes, hurricanes, and flooding were increasing. The world population had reached ten billion and was overcrowded. The crime rate in the United States was very high. One result of this was the construction of cities in orbit, which were very large cylinders that rotated about their axes. Millions of people had moved up there to get away from the earth, including Thomas Stevens, whose father was a key figure in the construction of the Cities in Orbit and who encouraged Tom to get an apartment in the sky. This is the action-packed story of Tom and his women.