Patty and Tilda, two young sisters, plan to sell berries at the train station to earn money for books and boots. They encounter a cattle-train filled with thirsty sheep and, moved by their suffering, use their berries and time to provide water, neglecting their business. A group of people observes their kindness and rewards them by buying all their berries and promising regular berry orders. The girls' compassion and hard work lead to unexpected success, demonstrating that helping others can bring unexpected rewards.