26 episodes from Season 4: Scorpion Part II, The Gift, Day of Honor, Nemesis, Revulsion, The Raven, Scientific Method, Year of Hell Part I, Year of Hell Part II, Random Thoughts, Concerning Flight, Mortal Coil, Waking Moments, Message in a Bottle, Hunters, Prey, Retrospect, The Killing Game Part I, The Killing Game Part II, Vis a Vis, The Omega Directive, Unforgettable, Living Witness, Demon, One, Hope and Fear.
