Caleb Fisher is the right-hand to his time-surfer, scientist father, John. Together on their thick metallic ship, they travel at super speed into the past and rescue treasures that have otherwise been lost--priceless works of art from the torpedoed RMS Lusitania, a crown jewel threatened by a flood in 1216 CE England--all for the good of humanity and for the glory of the ruling Global Council. But there are rules for time surfers. Never bring back anything that could change the course of history. And never, under penalty of death, bring back another human being. John Fisher is haunted by the loss of his wife in a mysterious incident, and he is always looking for a way to go deeper into the past and stay longer. John forbids Caleb to come on one particularly dangerous mission--to save ancient scrolls from the burning Great Library of Alexandria. But Caleb sneaks on board and what happens in 48 BCE returns with the Fishers into the future and changes their lives forever.