Season 1: 1.01 & 1.02 Rising (Parts One and Two) 1.03 Hide and Seek 1.04 Thirty-Eight Minutes 1.05 Suspicion 1.06 Childhood's End 1.07 Poisoning the Well 1.08 Underground 1.09 Home 1.10 The Storm 1.11 The Eye 1.12 The Defiant One 1.13 Hot Zone 1.14 Sanctuary 1.15 Before I Sleep 1.16 The Brotherhood 1.17 Letters from Pegasus 1.18 The Gift 1.19 The Siege (Part One) 1.20 The Siege (Part Two) Season 2: 2.01 The Siege (Part Three) 2.02 The Intruder 2.03 Runner 2.04 Duet 2.05 Condemned 2.06 Trinity 2.07 Instinct 2.08 Conversion 2.09 Aurora 2.10 The Lost Boys 2.11 The Hive 2.12 Epiphany 2.13 Critical Mass 2.14 Grace Under Pressure 2.15 The Tower 2.16 The Long Goodbye 2.17 Coup D'Etat 2.18 Michael 2.19 Inferno 2.20 Allies Season 3: 3.01 No Man's Land 3.02 Misbegotten 3.03 Irresistible 3.04 Sateda 3.05 Progeny 3.06 The Real World 3.07 Common Ground 3.08 McKay and Mrs. Miller 3.09 Phantoms 3.10 The Return (Part One)