The next generation of Griswolds is at it again—and on the road for another ill-fated adventure. Following in his father’s footsteps and hoping for some much-needed family bonding, a grown-up Rusty Griswold (Ed Helms) surprises his wife, Debbie (Christina Applegate), and their two sons with a cross-country trip back to America’s “favorite family fun park,” Walley World.