It's winter, and there are problems aplenty for Reuben and his pals. A plumbing project turns into a disaster when rainwater lifts the septic tank out of a neatly dug hole. The biggest job of the season is digging out the playground of a Victorian village school before it can be renovated into a B&B. But when Reuben's digger cracks through tarmac they accidentally damage an ancient underground drain. And Tommy and Sarah make plans to enter the local young farmers' Christmas tractor parade.