The Griswolds' cross-country journey to the Walley World theme park turns out to be considerably harder than they had planned.
After winning a vacation to Europe on a game show, the Griswolds pack their bags and prepare themselves for another chaotic adventure.
As Christmas time approaches, the Griswolds are planning a family celebration, but things spiral out of control, as Clark's good intentions have a way of turning into a chain of endless disasters.
When the Griswolds decide to go to Las Vegas for a vacation, their usual shenanigans and misadventures soon land them in trouble, raising the question of whether they can even find their way to each other again.
In an attempt to reconnect with his family, Rusty Griswold takes his wife and sons on a road trip, hoping it will send them journeying through their relationship, but things go unexpectedly odd.