The Cross of Isabella takes place in two different eras. Alex and Electra find themselves in1602 after their car plunges into the Gulf of Mexico.  A Captain Magraw presents them with the challlenge of racing the eight greatest pirates of all time in the quest for the treasured Cross of Isabella. The adventure takes place all over the Carribean where they encounter dangerous characters and surprising allies from pirates to Indians.

     Meanwhile,some left in the present scheme against Alex and Electra presuming they are dead..The true colors of people they knew are revealed.