1x05: Moroccan Roll
1x04: Enviro-mental
4x09: Dominant Traits
4x10: Last Stop
4x08: By Weeping Cross
4x07: A Moth to a Flame
4x06: Bell the Cat
4x05: The Engineer
4x04: North Star
4x03: Life Source
3x07: Ouroboros
3x06: Born to Bleed
