'FBI' Franchise Crossover Takes Over CBS Tonight - Watch All The Sneak Peeks!

“Imminent Threat – Part One” kicks off at 8 p.m.

Here’s the summary: 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 (Jeremy Sisto) and Nina (Shantel VanSanten) join 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.