After seeing Javier on the other side of the Rio Grande in Mexico, Michael starts to write him letters and then helps Javier cross the river to come into the United States.
David travels back in time to 1906 San Francisco to try to save the lives of Antonio Giovanni and his family who were victims of the devastating earthquake.
David and his family use his grandfather's time travel machine to travel to 1893 Cambridge, Massachusetts, where they meet African American football pioneer William Henry Lewis, who played for Harvard
After seeing Javier on the other side of the Rio Grande in Mexico, Michael starts to write him letters and then helps Javier cross the river to come into the United States.
After being adopted by Michael's family and moving from Mexico to Dallas, Javier tries to adapt to life in the United States but realizes he misses his old life in Vera Cruz, Mexico.
After being adopted by Michael's family and moving from Mexico to Dallas, Javier tries to adapt to life in the United States but realizes he misses his old life in Vera Cruz, Mexico.
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 travel to 1853 Ohio, where they assist runaway slaves on their journey north on the Underground Railroad.