The Fly Team and Smitty head to Morocco when a commercial aircraft flying from New York to Athens is grounded and an American citizen on board goes missing. Also, Kellett's relationship with Erdős continues to blossom.

When the abduction of an American architect in Rome appears to be connected to a brewing terror threat in New York City, FBI's Jubal and Nina join FBI: International's Forrester and his Fly Team in Italy, as they work together to find the missing American and shed light on the terrorists' U.S. target.