The Kidds, a family of expert treasure hunters, embark on a trip to China that will take them on an adventure beyond the Great Wall and into the dark underworld of Berlin. Bick and Beck Kidd are determined to find an ancient Chinese artifact that will help them free their mother from ruthless pirates. However, when the kidnappers demand that they locate priceless paintings stolen by Nazis, the Kidds must use their skills and ingenuity to outsmart the criminals, all while their mother's safety hangs in the balance.