Fight Night is told in the unforgettable voice of Swiv, a nine-year-old living in Toronto with her pregnant mother, who is raising Swiv while caring for her own elderly, frail, yet extraordinarily lively mother. When Swiv is expelled from school, Grandma takes on the role of teacher and gives her the task of writing to Swiv's absent father about life in the household during the last trimester of the pregnancy. In turn, Swiv gives Grandma an assignment: to write a letter to "Gord," her unborn grandchild (and Swiv's soon-to-be brother or sister). "You're a small thing," Grandma writes to Gord, "and you must learn to fight."