Henry and his family find themselves on a small spaceship that is taking them away from Earth. After a stop and another start, the trip goes past Saturn, into deep space. The Murphy family does their best to fit in with the others. Suzy enjoys piloting, Mark learns a thing about farming and matters of the heart, and Hannah discovers her scientist side. Henry gets a job that resembles his old, traffic controller job a little. It's just on a bit grander...