When thirteen-year-old Andy Mackpeace's psychic grandmother Geri bequeaths him some mysterious incense sticks, he lights one in her memory, and the smoke hurls him back to March 5, 1770 in Massachusetts. There he meets Samuel Maverick, a soon to be victim of the Boston Massacre. Andy experiences the horrible event and is almost killed. He discovers that lighting the unused portion of the stick brings him back to his New Hampshire home in the present.
Andy and his best friend Roger Stanley tempt fate to light a different stick for another time travel adventure. In the midst of the smoke, Miranda Roberts barges in, and Andy drops the stick. All three transport back to Antebellum Georgia where Andy and Miranda are the children of a plantation owner. Roger, who is black, is a slave.
Without the stick, they are hopelessly trapped. Tensions mount as Andy must make a decision that will change his life. Friendships are tested, broken, and ultimately transformed as these three travelers use their 21st Century wits to battle a 19th Century world.