Does Below have a happy or sad ending?

What resolves:

• Calvin Penney and his family successfully foil the Crocker family’s plan to force the residents of Snook’s Arm into relocation so they can exploit the town’s land. - The mysterious creature (“Mudder”) is revealed to be a mother protecting her unborn eggs, not just a monster. Calvin helps move Mudder and her iceberg nest to safer waters before a military strike. - Mudder releases her eggs, but tragically, the eggs don’t survive—because the water is too warm. - Calvin finally lets go of the guilt he carried over the death of his father—all that blame turns out to have been misplaced as he uncovers the Crockers’ corruption.

What remains unresolved or ominous:

• Though the community is safe for now, climate change and looming corporate interests still threaten Snook’s Arm. The Crockers aren’t defeated permanently. - The final shot shows Calvin and his son Wade returning on their boat and spotting multiple icebergs on the horizon—suggesting that the environmental danger is bigger and ongoing.

Overall: The ending is mixed—there’s victory in saving both family and community, and exposing the real villains, but the broader threats aren’t gone. It leans toward an optimistic outcome, yet keeps a serious note of caution.