Hoping to bring his family closer together and to recreate his childhood vacation for his own kids, an adult Rusty Griswold takes his wife and two sons on a cross-country road trip to Walley World. Needless to say, things don't go quite as planned.
A charming thief and a band of unlikely adventurers undertake an epic heist to retrieve a lost relic, but things go dangerously awry when they run afoul of the wrong people.