Kim and Kroy plan to take the family on a vacation, going coast to coast in an RV.
The Biermanns head to Nashville; the Littles go hog wild in a candy store; Kim learns some disturbing news about her father.
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.
The Biermanns face ghouls and ghosts in one of the most haunted houses in the country; Kim drops her phone in the RV toilet.
After days of stormy weather, the sun finally comes out for the Biermanns as they head to Branson, Missouri, or as Kroy calls it, the Vegas for Littles. But the good times only last so long as the RV breaks down in the middle of nowhere.
With their trip half-way behind them, the Biermanns are ready to take on legendary Route 66; first they must survive the night in a busted RV that is stranded in an abandoned parking lot.
The Biermanns are off to Texas where Ariana and Brielle hope to find a dude at the dude ranch, only to find that there are no dudes; Kim saddles up and faces her fear of horses.
When the Biermanns explore the caves of New Mexico, Kroy finds his true calling as a tour guide; Kim buys up every road-side crystal she can find; the RV has faulty air conditioning.
Tracey returns as the Biermanns invade Scottsdale, Ariz.; the gang goes house hunting; Kroy tries to convince Kim not to call the whole trip off after another setback with the RV.
After weeks of setbacks and struggles, Kim finally reaches Las Vegas.
As the Biermann's prepare to say goodbye to the RV, a visit to a psychic raises some eye-opening questions about Ariana's future.
With the Biermanns back home in Atlanta, they unpack and reflect on all the highs and lows as well as some of the unseen moments of their trip.