S4 E1: Yanks in the U.K. (1)

S4 E2: Yanks in the U.K. (2)

S4 E3: The Man in the Outhouse

S4 E4: The Finger in the Nest

S4 E5: The Perfect Pieces in the Purple Pond

S4 E6: The Crank in the Shaft

S4 E7: The He in the She

S4 E8: The Skull in the Sculpture

S4 E9: The Con Man in the Meth Lab

S4 E10: The Passenger in the Oven

S4 E11: The Bone That Blew

S4 E12: Double Trouble in the Panhandle

S4 E13: Fire in the Ice

S4 E14: The Hero in the Hold

S4 E15: The Princess and the Pear

S4 E16: The Bones That Foam

S4 E17: The Salt in the Wounds

S4 E18: The Doctor in the Den

S4 E19: The Science in the Physicist

S4 E20: The Cinderella in the Cardboard

S4 E21: Mayhem on a Cross

S4 E22: The Double Death of the Dearly Departed

S4 E23: The Girl in the Mask

S4 E24: The Beaver in the Otter

S4 E25: The Critic in the Cabernet

S4 E26: The End in the Beginning