Tom Galloway is depressed. Grieving the loss of his life partner, and recently retired, he has no idea what to do with the rest of his life. His book club buddies help him brainstorm possibilities, and Tom finds that the climate crisis stirs his passion. He vows to volunteer with a climate research project based at a local university.

But Tom never follows through, stymied by fear of failure and a series of surreal visions of his own violent demise. Fortunately, he gains confidence and strength from the support of his fellow book lovers – particularly Izzy, a college student and climate activist. Izzy had joined the book club while in high school at Tom’s invitation. The experience was a lifesaver, and Izzy is determined to repay his kindness by helping him find new meaning in his life. Will Tom become a warrior for the planet, too?