An outrageously hilarious race against the clock begins when Savannah Sprunt Fairchild Honeycutt agrees to get her feisty mother all the way from Alabama to California in time for her brother’s wedding. Savannah’s problem: Mama won’t fly. With only four days to make it to the ceremony, this determined daughter has no choice but to drive cross-country with her equally willful mother, Norleen Sprunt, in Mama’s vintage sedan. As Savannah steels herself for this hastily conceived road trip, another outrageous complication arises: a bubbly, over-eager bride-to-be arrives unannounced. Hayley Quinn, delighted to finally meet her future in-laws, is convinced that traveling together to her wedding is the perfect way to bond. The folly of her decision quickly becomes apparent when the journey begins and comedic chaos ensues. Every conceivable—and inconceivable—mishap that can occur does, including the theft of their car, a near-fatal encounter at an underwear museum, a mad dash across the desert in a hijacked eighteen-wheeler and a riotous detour to Vegas. In a surprising and heartwarming resolution, they forge an exciting new path for their own relationship and welcome Hayley into their delightfully wacky family.