Lost planet, the

This is what the boy is told:- He woke up on planet Trucon, inside of a fence line he shouldn't have been able to cross. - He has an annirad blaster would to the back of his head. - He has no memory.- He is now under the protection of a mysterious benefactor. - His name is Chase Garrety. This is what Chase Garrety knows:- He has a message: "Guide the star."- Time is running out.