Leo Graham went missing. His wife, Ava, and children, Chloe and Cole Graham, were kicked out by their cruel grandmother. The siblings discovered their cellar led to the modern world. They exchanged goods for food and medicine to support their mother. Their greedy uncle's family oppressed them, but they received help from Lucas, The Captain, and Isabella Linden. The children found their father, Leo Graham, imprisoned in an illegal brick kiln. The family used the cellar to escape poverty.