Season 4
200720 Episodes
With changes in leadership and new allies, the team continues to battle the Wraith and confront new existential threats. Personal dynamics shift as members struggle with loss and make significant choices that shape the fate of Atlantis and its mission in the Pegasus Galaxy.
All Episodes
S4 E1: Adrift (2)
S4 E2: Lifeline (3)
S4 E3: Reunion
S4 E4: Doppelganger
S4 E5: Travelers
S4 E6: Tabula Rasa
S4 E7: Missing
S4 E8: The Seer
S4 E9: Miller's Crossing
S4 E10: This Mortal Coil (1)
S4 E11: Be All My Sins Remember'd (2)
S4 E12: Spoils of War
S4 E13: Quarantine
S4 E14: Harmony
S4 E15: Outcast
S4 E16: Trio
S4 E17: Midway
S4 E18: The Kindred (1)
S4 E19: The Kindred (2)
S4 E20: The Last Man (1)