Second programme in this series following wildlife cameraman Gordon Buchanan as he spends a year with a family of wild black bears. As summer arrives, Gordon returns to Minnesota and discovers that the tiny bear cub Hope has been abandoned by her mother. He tracks down the starving cub, but her life hangs in the balance and Gordon steps in to try keep Hope alive. As he follows every twist and turn of the bears' lives, we witness a wild bear family from the inside, closer than we've ever seen before.

• Gordon Buchanan