Innisfree—the wild and isolated land on Chappaquiddick Island where Josiah Monroe grew up—was the only place where he felt he belonged.

And now it was gone.

His parents' painful decision to sell the land—the symbol of his mixed Wampanoag and Irish heritage—catapults the entire family into a spiral of disconnection as Josiah abandons the island in anger. He makes his way on an uneven road, seeking to redefine himself in a wider, more dangerous world marked by the turmoil of the Vietnam War and the cultural upheaval of the Sixties. In the wake of his leaving, his family struggles not only with Josiah's alienation but also with the debilitating polio suffered by his sister, Izzy. Ultimately, it is the power and magic of the island itself and the bonds of family that call them back to one another.