When three children endure separate climate change disasters--a wildfire in the California woods, a close encounter with a hungry polar bear in Canada, and a massive hurricane in Florida--they emerge from their experiences committed to changing the world.

Told in alternating voices, twelve-year-old Sami, from a village along the Bay of Bengal, and fourteen-year-old Yuki, from Northern Canada, strive to protect their homes from the encroaching damage brought on by climate change.