This season kicks off with summer in Polar Bear Town. Tourists flock to town to see thousands of beluga whales crowding the bay, but this year, an increasing number of bears have arrived in town earlier than usual. While it may prove to be lucrative for the guides who take tourists to see polar bears, it makes life much more dangerous for locals. Guide Dennis is thrilled at the prospect of a second summer bear season, but when his No. 1 client wants to get a risky picture of a swimming polar bear above and under the water, he gets worried. The lure of a polar bear bonanza also brings Kelsey back to Churchill, but when he happens upon a mom and cub swimming toward town, he steps in to try to keep them from getting too close. If the bears reach their destination, it could be disastrous for them – and the locals. At the Mile 5 Dog Sanctuary, Brian Ladoon is set on protecting his dogs from swarms of summer insects, but a tragic bear incident catches him off guard.