Sacrifice, revolution, the promise of freedom. These flood into the life of Casseia Majumdar, daughter of the Binding Multiples. Rebelling against her conservative family, the colonists who occupy Mars, Casseia takes part in the brewing revolution sparked by student protests in the year 2171. Meanwhile, her love life is in a very precarious situation, with her beloved Charles Franklin's seeking to merge his mind with the most advanced artificial mind....

After heroically saving his classmates, fifth-grader Sawyer's life as a dinosaur-human hybrid has gotten a lot easier until Sawyer, Sylvie, who is part Martian, and Elliot head to Mars in search of Sylvie's missing dad and discover that Mars is trying to kick Pluto out of the solar system.

When he takes a ride in a UFO to meet Janet, the head alien, Rappy must decide whether to live with her on Mars or return home.