A mother polar bear and her cub swim across the waters that was once the ice of the Arctic Tundra, as the film tells us the story of how she and her family survived during her youth.

Sadly one day, the polar bear's brother died, and it was only her and her mom left, she successfully hunted a baby walrus abandoned by a panicked mother.

The film ends with a message reading, "The Arctic could be ice-free by the summer of 2040, the actions we take today can positively change the future of polar bears."

[4] Claire Shaffer, of The New York Times, gave a positive review, saying "to its credit, Polar Bear isn't just playing in the snow; there's a very conscious through-line of conservation, highlighting how climate change has negatively affected the Arctic's ecosystem".

[6] Robin Holabird of KUNR claimed that the documentary succeeds to highlight climate change and how its impact on the ice cap can be lethal to polar bears, praised the team that worked behind the documentary for being unobtrusive while filming, and found Catherine Keener to be a thoughtful and serene narrator.