Pamela (guest star Kristen Wiig) finds her place within the group as they all set sail for Mexico, avoiding the apocalyptic nuclear fallout in the United States. Their course derails a bit when they realize that none of them knows how to actually navigate a yacht in the all-new “M.U.B.A.R.” Season Four premiere episode of THE LAST MAN ON EARTH airing Sunday, October 1st on FOX.