The Garcia family is about to set out on a road trip in ALEXANDER AND THE TERRIBLE, HORRIBLE, NO GOOD, VERY BAD ROAD TRIP. Mom Val (Eva Longoria), a travel writer, is commissioned to drive the American Southwest in a souped-up RV. Dad Henry (Jesse Garcia) is a chef whose restaurant is closing, though he has yet to tell his family. Teenager Mia (Paulina Chavez) is none too happy to have to spend family time on the road, especially during "prom-posal" week. Youngest Alexander (Thom Nemer), who considers himself to have the worst luck in the world, has all kinds of concerns about the trip. It turns out he might have been right to worry.