Every summer, when hundreds of grizzlies gather in North America to mate, fight and gorge on salmon, the action is certainly explosive. You might think you've seen it a million times before…but you've never seen it like this. Using a huge stakeout team and a range of cameras, this stunning series takes you right into the heart of grizzly bear central, a magical location in wildest Alaska. For some, the going is easy - Van and Alice, the ‘Posh and Becks’ of the bear world, can take their pick of food and partners. For others, like nervy new mum Parsnip and her new-born cubs, the struggle begins from day one. To survive in this neighborhood, you need to know how to handle yourself - that goes for bears and crew…