It might be a child’s dream to visit other planets. George seems to be living in one. When Annie, George’s friend and neighbor, goes to America because of her dad’s job, George is very much discouraged. He feels as if almost all the happiness from his life had been sucked away into a black hole. After a few months, a surprise Email arrives from Annie. It says that Eric and Susan, Annie‘s parents, are inviting George to stay in their house for a few days. Thanks to his grandmother, George manages to convince his parents to let him go to Annie’s. When he arrives at Annie’s house, George finds out that there is another boy named Emmett, Eric’s friend’s child, living with Annie for the time being. Annie and Emmett don’t seem to get along very well. The day George arrives in Florida, Annie tells him about a very intriguing thing. She says that she got a message from aliens. Even George does not believe her, but he has to when strange things happen to Homer, the Mars rover that Annie’s father helped to develop. They make a truce with Emmett, and he helps them use Cosmos, the supercomputer, to go into space to solve this mystery. What’s more, you won’t believe who did all this.