Season 4 2011-12 7.9/10    
         
1 Neither Here Nor There 6.9  
2 One Night in October 7.8  
3 Alone in the World 8.9  
4 Subject 9 9.0  
5 Novation 8.0  
6 And Those We've Left Behind 8.4  
7 Wallflower 7.8  
8 Back to Where You've Never Been 8.4  
9 Enemy of My Enemy 8.2  
10 Forced Perspective 7.3  
11 Making Angels 7.4  
12 Welcome to Westfield 9.2  
13 A Better Human Being 7.0  
14 The End of All Things 7.4  
15 A Short Story About Love 7.7  
16 Nothing As It Seems 7.4  
17 Everything in Its Right Place 7.0  
18 The Consultant 8.0  
19 Letters of Transit 6.0  
20 Worlds Apart 8.5  
21 Brave New World (Part 1) 7.5  
22 Brave New World (Part 2) 8.6