Ruby centers on Ruby Landry (Raechelle Banno), born in the Louisiana bayou and watched over by her loving Grandmère Catherine (Judd). Ruby is filled with hope as love blooms with her high school sweetheart Paul Tate (Duke), but lingering thoughts of her mysterious father and her mother's death often creep into Ruby's mind. As dark family secrets begin to reveal themselves when Paul's parents forbid him from seeing Ruby, Ruby is further devastated when her beloved Grandmère passes away. Forced to flee to New Orleans from the bayou, Ruby searches for her estranged father (Bellows), one of the richest men in the city, as she clings to her memories of Paul and their forbidden love.