It's 1919 and Charlie Kelly has married the love of his life, Susan, and together the newlyweds hope to grow the business empire that Susan's father, Walter Kramer, built. Charlie's dream of starting his own oil company becomes a reality, and Susan takes over the leadership of the Kramer Group, but tragedy soon follows triumph. Charlie discovers that the trail to becoming the best oil man in Oklahoma is not as easy as becoming a top hand at the 101 Ranch. It will take more than just financial backing to be a success in the Oklahoma oil fields, especially when family, competitors, business opportunities, and sabotage all compete for Charlie's attention. When the success of Kelly Oil puts Susan's life at risk, Charlie will take the bull by the horns and find a way to save Susan as only a cowboy can.