6x10: Flora and Fauna
6x09: The Future
6x07: Fingers and Fumbs
6x06: Fakes and Frauds
6x04: Fight or Flight
6x03: Flotsam and Jetsam
6x02: Fire and Freezing
5x09: Entertainment
5x08: Eyes and Ears
5x06: Everything Etc
5x04: Exploration
5x02: Electricity