Polar bears are adorable but this movie is not.
The main animals (obviously) are a mother polar bear and her cubs. They tell of her story in the arctic along with other polar bears. Where the ice keeps melting too soon and takes longer to freeze back up. Which makes finding food harder for the polar bears.
But they aren’t the only animals who struggle to live in the cold lands. They show walruses with many mothers who look after their babies. They also follow a herd of caribou (reindeer) who travel to a safer place to give birth.
I had seen a previous film with a similar story called Arctic Tale which was much better. This one was too boring, even Meryl Streep narrating might put you to sleep. It’s not a very long documentary, and they never seriously focus on any of the animals to make you care for them. It touches on the climate change issue, but with weak enthusiasm.