The Doctor in the Den (S04E18)

S04E01 Yanks in the U.K. (1) S04E02 Yanks in the U.K. (2) S04E03 The Man in the Outhouse S04E04 The Finger in the Nest S04E05 The Perfect Pieces in the Purple Pond S04E06 The Crank in the Shaft S04E07 The He in the She S04E08 The Skull in the Sculpture S04E09 The Con Man in the Meth Lab S04E10 The Passenger in the Oven S04E11 The Bone That Blew S04E12 Double Trouble in the Panhandle S04E13 Fire in the Ice S04E14 The Hero in the Hold S04E15 The Princess and the Pear S04E16 The Bones That Foam S04E17 The Salt in the Wounds S04E18 The Doctor in the Den S04E19 The Science in the Physicist S04E20 The Cinderella in the Cardboard S04E21 Mayhem on a Cross S04E22 The Double Death of the Dearly Departed S04E23 The Girl in the Mask S04E24 The Beaver in the Otter S04E25 The Critic in the Cabernet S04E26 The End in the Beginning