Grandpa's Trek

 was a failed pilot for a proposed TV series of the same name, Grandpa's Trek, that would have been set to air in 2014(?) if the pilot had been succesful. Obviously, it wasn't, and to this day the pilot has actually never been aired and found. It is now part of the Lost Media fandom.

Plot
Due to the pilot's lost status, the pilot's plot has never been known of.