Stargate Atlantis — Season 5

All 20 episodes in airing order, with first-run dates and viewer ratings.

1. 01

   July 11, 2008 · 1h

   Search and Rescue7.8

   Atlantis races against time to save team members trapped in a collapsed compound, and rescue a pregnant Teyla from Michael's clutches.

2. 02

   July 18, 2008 · 1h

   The Seed7.4

   When a mysterious alien organism takes Dr. Keller as its host, Beckett and the crew desperately search for a serum to save her from the evolving intruder before it can infiltrate Atlantis.

3. 03

   July 25, 2008 · 1h

   Broken Ties7.5

   Ronon is captured by his former friend, Tyre, and turned over to the wraith. As the team scrambles for leads, Ronon undergoes a torturous ordeal.

4. 04

   August 1, 2008 · 1h

   The Daedalus Variations7.5

   A drive malfunction aboard a mysterious duplicate Daedalus sends the team jumping through various alternate realities where they encounter sinister alien life forms, a searing sun, and a pitched space battle over Atlantis.

5. 05

   August 15, 2008 · 1h

   Ghost in the Machine7.0

   A mysterious entity causes crippling havoc within the city's computer systems.

6. 06

   August 22, 2008 · 1h

   The Shrine7.6

   While on a rescue mission to another planet, Dr. Rodney McKay falls fatally ill and his sister Jeannie is summoned from Earth to say her final goodbyes.

7. 07

   September 5, 2008 · 1h

   Whispers6.3

   While exploring an abandoned catacomb on an unexplored planet, an Atlantis away team uncovers one of Michael's secret labs.

8. 08

   September 12, 2008 · 1h

   The Queen7.8

   Teyla risks her life on a daring mission aboard a wraith hive ship.

9. 09

   September 19, 2008 · 1h

   Tracker7.6

   With Hunter Wraith in close pursuit, only Ronan's uncommon skills as a former Runner may save a kidnapped Dr. Keller.

10. 10

    September 26, 2008 · 1h

    First Contact8.0

    Atlantis encounters a mysterious alien race when Dr. Rodney McKay and a visiting Dr. Daniel Jackson stumble upon the secret lab of a rebellious Ancient scientist named Janus.

11. 11

    October 10, 2008 · 1h

    The Lost Tribe8.1

    With the Daedalus under siege, Dr. Daniel Jackson and Rodney McKay try to keep a reactivated Ancient weapon from triggering a cataclysmic chain of events.

12. 12

    October 17, 2008 · 1h

    Outsiders8.1

    Col. John Sheppard and his team, aided by Dr. Carson Beckett, struggle to save survivors of the Hoffan plague from being sacrificed to the Wraith.

13. 13

    October 24, 2008 · 1h

    Inquisition6.2

    Sheppard and his team are abducted by a newly formed galactic coalition and made to stand trial for crimes against humanity.

14. 14

    November 7, 2008 · 1h

    The Prodigal8.2

    An old foe, bent on revenge, infiltrates the Gate Room to take control of Atlantis.

15. 15

    November 14, 2008 · 1h

    Remnants7.3

    While Richard Woolsey struggles to keep his position as the leader of Atlantis, and McKay and Zelenka investigate a mysterious find, Sheppard is captured by an old enemy with plans to invade the city.

16. 16

    November 21, 2008 · 1h

    Brain Storm8.4

    Dr. Keller accompanies Dr. McKay to Earth to attend a top secret scientific demonstration by McKay's former rival.

17. 17

    December 5, 2008 · 1h

    Infection7.8

    Atlantis receives a distress signal from a hive ship and discovers that all the Wraith on board have placed themselves in stasis, the victims of a lethal affliction.

18. 18

    December 12, 2008 · 1h

    Identity7.5

    Dr. Jennifer Keller wakes to find her consciousness inside the body of a notorious thief who has been sentenced to death for her crimes.

19. 19

    January 2, 2009 · 1h

    Vegas6.8

    Detective John Sheppard attempts to solve a string of unusual murders in Las Vegas.

20. 20

    January 9, 2009 · 1h

    Enemy at the Gate8.0

    Atlantis rushes to destroy an advanced Wraith hive ship before it presents a threat to Earth.