The terrorist group that kidnap Katie and John is called "Sword of Islam".
Marshall: (asking about the mission in 2003) Tell me John. What happened on those stairs?
Orla Brady got her inspiration to play the part of Katie from real life BBC war correspondent Orla Guerin.
International Air Dates:
Germany: January 26, 2011
Japan: February 19, 2011
Hungary: July 28, 2012