In the little upstate New York town of Union Grove, springtime is a most difficult season, known as "the six weeks want," when fresh food is scarce and winter stores have dwindled. Young Daniel Earle returns from his haunting travels around what is left of the United States intent on resurrecting the town newspaper. He is also recruited by the town trustees to help revive the Hudson River trade route shut down peevishly by the local grandee, planter Stephen Bullock. Meanwhile, a menacing gang of Social Justice Warriors styling themselves as agents of the Berkshire People's Republic appear one evening camped on the outskirts of town. Their leaders are the imposing Amazonian beauty Flame Aurora Greengrass and the charismatic grifter Sylvester "Buddy" Goodfriend, progressive to a fault in their politics and determined to extract whatever tribute they can from the people of Union Grove.

Romance, politics, bunko, violence, and family tragedy swirl through the thrilling finale to Kunstler's bestselling series. The Harrows of Spring is a powerful, heart-wrenching, and satisfying conclusion to this poignant history of the future.