When fifteen year old Troy Robinson and his family become some of the first colonists on Mars in 2051, it is an exciting new beginning for him and his sister, Summer. Although the Martian colony feels very far from home to begin with, Troy soon makes friends with other young colonists, and rapidly begins to settle into his new life. However, it is not long before Troy realizes that someone, or something, is trying to sabotage the colony. With the help of his friends, he uncovers a secret buried beneath the surface of Mars. Mankind is not alone on the Red Planet!