In the sixth installment in the Bob the Interdimensional Trucker series, trucker of few words Harrison "Montana" Kirk returns to his not so happy childhood home to find the ghost of his own father tasking him with a daunting The old man's spirit wants to be freed from an alien containment facility that has trapped him deep within a nearby mesa. Though Montana and his dad were never close--far from it, in fact--the Roads Unlimited driver does his best to oblige. A seemingly chance encounter with his father's brother leads to a trek deep within the mesa, wherein he learns that the job is much bigger than even Montana imagined. Complicating matters is a secret government watchdog organization that immediately seizes the trucker and incarcerates him in a mysterious black ops prison of sorts, explaining that he's stepped into a mess that may not easily be undone and holding him "indefinitely." But there are other forces at play by then, and Montana is about to find out that even an off duty RU driver can end up dealing with all kinds of things that the world at large doesn't even believe exist.