Big-hearted Chicago family man Chet has brought his family to a lakeside resort area, and although his wife and kids aren’t quite as excited as he is, Chet has high hopes for the vacation. However, his optimism is sabotaged when his obnoxious brother-in-law Roman drops in unexpectedly, along with his snooty, strange family. Chet and his family try to stay open-minded, but they find it difficult to relax and enjoy themselves because of the constant annoyance of Roman’s presence. A suburbanite takes his family on a quiet vacation at a lakeside resort, but chaos ensues when his snobby brother-in-law shows up with his family. All he wants is a normal, quiet family vacation. He’s getting his wife’s loudmouth brother instead.