Season 4
Episodes
1 Endgame Sep 25, 2012 
2 Recruit Oct 2, 2012 
3 The Fifth Man Oct 9, 2012 
4 Dead Body Politic Oct 23, 2012 
5 Out of the Past (1) Oct 30, 2012 
6 Rude Awakenings (2) Nov 13, 2012 
7 Skin Deep Nov 20, 2012 
8 Collateral Nov 27, 2012 
9 The Gold Standard Dec 11, 2012 
10 Free Ride Dec 18, 2012 
11 Drive Jan 8, 2013 
12 Paper Soldiers Jan 15, 2013 
13 The Chosen One Jan 29, 2013 
14 Kill House Feb 5, 2013 
15 History Feb 19, 2013 
16 Lohkay Feb 26, 2013 
17 Wanted Mar 5, 2013 
18 Red (1) Mar 19, 2013 
19 Red (2) Mar 26, 2013 
20 Purity Apr 9, 2013 
21 Resurrection Apr 23, 2013 
22 Raven & the Swans Apr 30, 2013 
23 Parley May 7, 2013 
24 Descent May 14, 2013