1x08: There Is No End
1x07: The Crossing Place
1x04: Ave Verum Corpus
1x03: Time Has Come Today
1x01: She Was Provisional
1x13: Being Human
1x11: The Grey Hat
1x10: Cain and Gabriel
1x09: Athens
1x08: Delta Force
1x07: Size Matters
1x06: Patient Zero
1x05: The Rescue
1x03: Mei Chen Returns
1x02: Red X