Time Jumper is a coming-of-age novel set in Earth's distant future. The story revolves around two contrasting characters: a dwarf named Erin and an adolescent boy named Randi. Erin lives in a city sealed beneath a protective shield, where everything is artificially engineered, even the birds in the trees. The citizens isolate themselves in their crystal towers, caring only about wealth and status. In stark contrast, Randi lives with his tribe in a much different and more primitive environment: the wilderness outside the domed city.