S54 E1: Protective measures
S54 E5: The cold of the earth
S54 E6: Down in the valley
S54 E7: What kind of world is this?
S54 E12: Nothing but the truth (1)
S54 E13: Nothing but the truth (2)
S54 E17: Borowski and the Great Rage
S54 E18: The secret lives of our children