Series 18 aired between 06 Jan 2015 and 03 Feb 2015, 10 episodes.
Episodes
E01
Sniper's Nest (1)
06 Jan 2015
E02
Sniper's Nest (2)
07 Jan 2015
E03
Falling Angels (1)
12 Jan 2015
E04
Falling Angels (2)
13 Jan 2015
E05
Protection (1)
19 Jan 2015
E06
Protection (2)
20 Jan 2015
E07
Squaring the Circle (1)
26 Jan 2015
E08
Squaring the Circle (2)
27 Jan 2015
E09
One of Our Own (1)
02 Feb 2015
E10
One of Our Own (2)
03 Feb 2015