When Connecticut middle-schooler Jake and his older sister Kady are transported back to Pangaea, the strange world of lost civilizations, they must find the truth behind the mythic Fire Opal Eye in order to survive.
Sigma Force stalwarts Painter Crowe and Commander Grayson Pierce must investigate a gruesome massacre in the Rocky Mountains and root out a secret cabal that has been manipulating momentous events since the time of the original thirteen colonies.
Jack Ransom and his sister, Kady, are sent on a wild hunt for answers when a mysterious letter arrives on the doorstep and leads them to a strange world inhabited by a mix of long-lost civilizations, where they hope to learn the truth about their parents' disappearance.