1x13: The Longest Night
1x12: Resurrection
1x11: The Promise
1x10: The Source
1x09: The Secret War
1x07: Faint Hope
1x06: The Trials
1x05: The Oldest Virus
1x03: The Face of God
1x02: Spare Parts
4x21: Rate of Exchange
4x19: S.O.B.
4x18: VS.
4x17: The Mother Lode
4x15: Going Under
4x14: Just Business
