Mary, a young student who traveled the country for six years with her parents and siblings in their RV, has landed an aerospace internship – the next step in pursuing her dream of becoming an astronaut!

When returning customer, Natasha O'Conner of Bake it On Wheels, comes back for seconds at Celebrity Trailers, Janice, David and Big Boi put in their best efforts to impress their client.

Janice and Big Boi take on one of their biggest challenges yet–designing an all-in-one modern guest room on wheels for Janice's childhood best friend, Alicia. The only problem? She just might be their most difficult-to-please client to date.