Late December 2009 and the start of 2010 have seen Britain experience one of the coldest winters in decades. And we thought we had it bad... This documentary examines the reasons for the weather and what the consequences have been. Experts and eyewitnesses discuss how the heavy snowfall and plummeting temperatures compare to the big freezes of 1947, 1963 and February 2009. Just how does 2010 compare? And should we expect to see these conditions in our neck of the woods during the winters to come?