Summer vacation has just begun and Dayshaun wants to spend Saturday morning playing his new video game. But Dayshaun's mother has other plans: she volunteers at a nearby community garden and that means Dayshaun has to volunteer, too. When Dayshaun puts on his grandfather's grubby old gardening hat, something unexpected happens-the hands of time turn backward and Dayshaun finds himself in the free Black community of Weeksville during the summer of 1863 While helping the survivors of the New York City Draft Riots, Dayshaun meets a frail old man who entrusts him with a precious family heirloom....