The premise of the show is basically that in order to "become more manly" and "have stronger confidence to not be shy" he goes on a trip by himself. The distance is 2945km and conditions are harsh (because crossing the desert??), and he has to overcome language barriers, etc. ETA: The news clip also said the budget was 10,000yen, and there was only 1 staff with him (to further emphasize him needing to rely on himself only)!
information from: OHP, today's PON!, twitter
(... Sounds like Route66 ver.2 to me. XD But so exciting! A show all by himself ♥! おめでとう!)