It's the grand opening of APOGEE, the world's first space hotel, an orbital space station designed expressly for the tourist trade. As Swift Enterprises is a major investor in the project, and provided much of the necessary technology, Tom and Sandy have been invited to be among the first guests to visit!

When they arrive at the APOGEE they experience weightlessness, learn about the high-tech nature of the hotel (including the robotic wait and cleaning staff), and play a game of zero-gravity badminton. But as Tom explores the ship he begins to notice some strange happenings. And when a billionaire guest of the hotel turns up missing, Tom suspects foul play....