Twenty years after Into Autumn, Sean and Robbie leave Peaceful Valley for Corpus Christi, hoping to find women who will join their fiercely protective group back home. What they find is a fight to survive the violent dictatorship of ruthless Sandra Hawkins. Meanwhile, a new family joins the group in the Valley, except that what seems like a safe addition might bring the worst kinds of change. Into Spring continues the Four Seasons saga about building a new life in Texas after the collapse of civilization.