Hunkering Down

S1, E4: The days are getting colder and shorter on our 1,200-acre organic farm, and the wild residents are packing on the pounds to get though the approaching winter months . Inside the farm's cozy barn, the cows' curiosity is piqued by a strange new contraption, while Sheila's nine piglets get to know their neighbors. "Downton Abbey" co-star Hugh Bonneville narrates this unique peek into the secret lives of the animals living in and around this Southern England farm as the icy season transforms the bucolic landscape into a winter wonderland.