STAGIONE:  
4.1 Ambush  
4.2 Something New  
4.3 Friendly Fire  
4.4 When The Bough Breaks  
4.5 Good Touch, Bad Touch  
4.6 Ground Zero  
4.7 Fathers and Sons  
4.8 Freak Show  
4.9 Obstruction of Justice  
4.10 Do you see what I see?  
4.11 Think Warm Thoughts  
4.12 Sharp Relief  
4.13 Carter's Choice  
4.14 Family Practice  
4.15 Exodus  
4.16 My Brother's Keeper  
4.17 A Bloody M  
4.18 Gut Reaction  
4.19 Shades Of Gray  
4.20 Of Past Regret and Future Fear  
4.21 Suffer the Little Children  
4.22 A Hole In The Heart