In 1941, when an American pilot with the British Royal Air Force parachutes into the woods near her French village, fourteen-year-old Jeanne tries to keep him safe from the Nazis.
Sasha tries to adjust to his new life in the United States, but his thoughts keep returning to the deepening troubles in his home country, Latvia, as Hitler's bombs fall on Riga in June of 1941.
After her father dies at the Battle of Gettysburg, Sallie Randall and her mother move to Kansas, where Mrs. Randall takes a job as housekeeper and Sallie adjusts to life with a new family.
During World War II, Jack, who had started getting into trouble at home, goes to work on his uncle's sheep ranch in Oregon, where he learns about responsibility, bravery, and getting along with others.
As Stalin's purges and arrests increase, Sasha and his mother plan to leave Russia to join his father and older sister who have emigrated to Riga, Latvia.
David and his family travel back in time to 1880 to experience life in the American South as the Reconstruction era following the Civil War came to an end.
David and his family use his grandfather's time travel machine to go back in time to the Chicago World's Fair in 1893.