In the Convoy

In 2027, Passenger 852, a private detective, Tony Tetiawan, goes on a vacation trip with his family of four aboard an ocean liner, the Titans of the Oceans. For unknown reasons the vessel and everybody in it find themselves on a future Earth, thousands of years into the future. Everything has changed since 2027. People live in generation starships, spread throughout the galaxy, and heavily-fortified colonies because numerous extraterrestrials from the nearby Andromeda galaxy want them dead. A General Artificial Intelligence, NBBN2, is asked to teach Passenger 852, Tony, about history.
Plus, he must figure out what has happened to the Passengers. Who brought them to the future and for what reason? An Artificial Super Intelligence conjectures about foul play. Maybe the Passengers aren't who they say they are. Could they be mighty enemies in disguise?