Meet the Post Family: Mom owns a postcard company... Dad is a postmaster... Peter and Piper love to send postcards to their pen pals, but most of all they love to intercept postcard messages! But what about one that starts out Dear Alien?” What can that mean? To get to the bottom of things, mom and the kids rumble off in their SUV on a SETI (search for extraterrestrial intelligence) to see if a LGM (little green man) is really behind the suspicious postcard!