With the Littles growing up and Ariana off to college next year, Kim and Kroy plan to take the family on one last epic vacation - Biermann style. Six kids, six weeks, going coast to coast crammed into an RV - What could possibly go wrong?

Still reeling from the bombshell about Kim's dad, the Biermanns say a heartfelt goodbye to Tracey, whose son awaits her in Atlanta. Meanwhile, a visit to the St Louis Arch triggers Kim's many phobias.