As the family must fly to Mexico for Matt's wedding, Tim planned to book an Ueber cab early, but Heather insists to waste that time margin, the girls pack crazily and the driver is unfit professor Sinclair Wilde, so they end up loosing their luggage and facing a fire-damaged home. Matt and Colleen can't resist volunteering for later flights to earn compensation vouchers, but end up without a timely ticket in a complimentary hotel room with a sleazy fellow-cheapskate. John and Joan are in charge to bring his 'ring-bearer' dog Tank, but even such small pouches aren't allowed on board, and posing as vets while the dog plays dead doesn't work at any level. Greg and Jen expected bringing baby lark along wouldn't make them popular aboard, but the parents of legendary baby Gavin set a steep example and Greg can't resist posing as that dream-baby's father, only to be caught out, and ends up causing an emergency landing.
—KGF Vissers