Documents concerning evidence of adverse climate change in the Rocky Mountains, where climate scientist and ecologist Dan Fagre reveals how a rapid decline of alpine glaciers is threatening the mountain ecosystem.

Year one : Into the cirque -- Years two & three : Through the looking glass -- Year four, week one : The falcon and the falconer -- Year four, week two : The cascade effect -- Year four, week three : Fire and ice -- Year four, week four : Things fall apart -- Year four, week five : A thousand words -- Year five, epilogue : The widening gyre.