Chet Ripley, along with his wife Connie and their two sons, heads to a scenic lakeside cabin in Wisconsin for a much-needed vacation. Envisioning a peaceful holiday filled with fishing, bonding, and enjoying the great outdoors, Chet aims to provide his family with unforgettable memories, away from the hustle of their Chicago life. The Ripleys are eager to soak in the beauty of nature, partake in the fun of camping, and relish the tranquility of their temporary retreat, hoping to escape the demands of their regular routines.

However, their plans take an unexpected turn when Chet's obnoxious brother-in-law, Roman Craig, his wife Kate, and their twin daughters unexpectedly arrive to join the vacation. Roman, a wealthy investment banker, flaunts his success and seems to undermine Chet at every turn, creating tension and chaos. The clash of personalities between the laid-back Chet and the overbearing Roman turns the intended peaceful getaway into a series of comedic misadventures, testing the family bonds and patience of all involved. As the families attempt to coexist, they navigate a series of humorous and challenging situations, straining the tranquility of their holiday.