THE UNIT IS ASSIGNED TO SLIP INTO IRAN TO PLANT RADIATION "SNIFFERS," BUT WHEN THINGS GO AWRY, MACK MUST DECIDE WHETHER TO LEAVE BEHIND THE WOMAN WHO SERVED AS THEIR LOYAL GUIDE TO BE TORTURED, OR MERCY KILL HER HIMSELF, ON "THE UNIT," ON A SPECIAL TIME, TUESDAY, FEB. 6 AT 10:00 PM, ET/PT

"Johnny B. Good" -- The Unit is assigned to slip into Iran to plant radiation "sniffers," but when things go awry, Mack must decide whether to leave behind an Iranian woman who served as their loyal guide to be tortured, or mercy kill her himself, on THE UNIT, Tuesday, Feb. 6 (10:00-11:00 PM, ET/PT) on the CBS Television Network. The episode was directed by Vahan Moosekian and written by Todd Ellis Kessler.

Meanwhile, back at home a wounded Jeremy has Molly at his bedside while his strangely absent girlfriend Crystal is steaming things up with one of the married men of the Unit. Her own affair long over, and fulfilling hours of community service at a free legal clinic, Tiffy clashes with lawyer Wilson James over a case of a soldier gone AWOL.

SERIES REGULARS:

Jonas Blane: Dennis Haysbert
Molly Blane: Regina Taylor
Bob Brown: Scott Foley
Kim Brown: Audrey Marie Anderson
Mack Gerhardt: Max Martini
Tiffy Gerhardt: Abby Brammell
Col. Tom Ryan: Robert Patrick
Charles Grey: Michael Irby
Hector Williams: Demore Barnes

RECURRING CAST:

Crystal: Summer Glau
Jeremy: Daniel Wisler

GUEST CAST:

Major General Carl Heath: Conor O'Farrell
Wilson James: Jon Hamm
Christine Ross: Zosia Mamet
Pari: Necar Zadegan
Javad: Homie Doroodian
Jeff Lieber: Brad Fleischer
Iranian Guide: Ali Samm
Shepherd: Jonathan Ahdout
Salesman: Ryan Judd
Bar Patron: Lance Irwin

RATING: TV-PG-LV