Sezon 4
Bölümler
1 Yanks in the U.K. (1) 3 Eyl 2008 
2 Yanks in the U.K. (2) 3 Eyl 2008 
3 The Man in the Outhouse 10 Eyl 2008 
4 The Finger in the Nest 17 Eyl 2008 
5 The Perfect Pieces in the Purple Pond 24 Eyl 2008 
6 The Crank in the Shaft 1 Eki 2008 
7 The He in the She 8 Eki 2008 
8 The Skull in the Sculpture 5 Kas 2008 
9 The Con Man in the Meth Lab 12 Kas 2008 
10 The Passenger in the Oven 19 Kas 2008 
11 The Bone That Blew 26 Kas 2008 
12 Double Trouble in the Panhandle 22 Oca 2009 
13 Fire in the Ice 22 Oca 2009 
14 The Hero in the Hold 5 Şub 2009 
15 The Princess and the Pear 19 Şub 2009 
16 The Bones That Foam 12 Mar 2009 
17 The Salt in the Wounds 19 Mar 2009 
18 The Doctor in the Den 2 Nis 2009 
19 The Science in the Physicist 9 Nis 2009 
20 The Cinderella in the Cardboard 15 Nis 2009 
21 Mayhem on a Cross 16 Nis 2009 
22 The Double Death of the Dearly Departed 20 Nis 2009 
23 The Girl in the Mask 23 Nis 2009 
24 The Beaver in the Otter 30 Nis 2009 
25 The Critic in the Cabernet 7 May 2009 
26 The End in the Beginning 14 May 2009