Three Welsh families give up their 21st century creature comforts and time travel back to 1944 to face the hardships of life in World War II. At the end of the first week in the Coal House, how are the children coping with no playstations or mobiles to occupy them? There's a strict school system to contend with and a daily dose of cod liver oil to swallow. Will they pass the school cleanliness inspection, and how will they get on with the animals at Stack Square?