Stargate Atlantis - Season 4

Stargate Atlantis - Season 4

Season 4

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.
Network
Episodes20
DatesSep 28, 2007 - Mar 7, 2008
Previous SeasonNext Season

Episodes

Adrift
Season 4Episode 160 min

Adrift

When Rodney McKay realizes Atlantis has started shutting down artificial gravity and collapsing protective shields to compensate for a damaged power system, he turns off all non-essential systems. But when the problem persists, McKay is forced to collapse the shield to the point where it is only protecting Atlantis' main tower, leaving the rest of the city exposed to space.

Sep 28, 2007
Lifeline
Season 4Episode 260 min

Lifeline

Lt. Col. Sheppard leads his team to the core of the Replicator home world on a high-risk mission to steal a ZPM, while Col. Samantha Carter, aboard the Apollo, races against time to locate the missing city of Atlantis.

Oct 5, 2007
Reunion
Season 4Episode 360 min

Reunion

Ronon reconnects with a group of Satedans from his past who enlist the Atlantis team's help on a dangerous mission against the Wraith.

Oct 12, 2007
Doppelganger
Season 4Episode 460 min

Doppelganger

During an exploratory walk on a jungle planet, Lt. Col. Sheppard touches a glowing crystalline growth and unwittingly becomes host to an infectious energy form.

Oct 19, 2007
Travelers
Season 4Episode 560 min

Travelers

On his way back to Atlantis, Lt. Col. Sheppard and his jumper are taken prisoner by a rogue ship helmed by a beautiful but ruthless human commander with a secret agenda.

Oct 26, 2007
Tabula Rasa
Season 4Episode 660 min

Tabula Rasa

With almost everyone on Atlantis infected by an amnesia-causing virus, McKay finds himself zip-tied to his desk with cryptic letters on his arm and no memories of who he is or what has happened.

Nov 2, 2007
Missing
Season 4Episode 760 min

Missing

Arriving on New Athos for an overnight visit, Teyla and Dr. Keller discover the entire settlement abandoned and their own lives in jeopardy from a primitive warrior tribe.

Nov 9, 2007
The Seer
Season 4Episode 860 min

The Seer

While trying to find her people, Teyla and the team meet a man with extraordinary prophetic abilities who predicts a frightening future for Atlantis.

Nov 16, 2007
Miller's Crossing
Season 4Episode 960 min

Miller's Crossing

When McKay's sister Jeanie is kidnapped, the team returns to Earth to find her.

Nov 30, 2007
This Mortal Coil
Season 4Episode 1060 min

This Mortal Coil

The Atlantis team's worst fears may be realized when a mysterious drone crashes into the city.

Dec 7, 2007
Be All My Sins Remember'd
Season 4Episode 1160 min

Be All My Sins Remember'd

Now armed with the means to track Replicator ships throughout the Pegasus Galaxy, the Atlantis teams strives to eliminate the Replicators once and for all.

Jan 4, 2008
Spoils of War
Season 4Episode 1260 min

Spoils of War

The Atlantis team successfully salvage a partially damaged Hive ship and in the process retrieve some critical information that may help in their war against the Wraith.

Jan 11, 2008
Quarantine
Season 4Episode 1360 min

Quarantine

When an alarm sounds throughout the city, initiating a quarantine lock down, the Atlantis team finds themselves trapped in various sections of the city with no way out.

Jan 18, 2008
Harmony
Season 4Episode 1460 min

Harmony

Wanting to maintain diplomatic relations, Sheppard and McKay agree to accompany a precocious young princess on a rite of passage.

Jan 25, 2008
Outcast
Season 4Episode 1560 min

Outcast

When Lt. Colonel John Sheppard receives word that his father has passed away he returns to Earth but, once there, becomes embroiled in a covert and dangerous experiment gone awry.

Feb 1, 2008
Trio
Season 4Episode 1660 min

Trio

During an off world mission, Carter, McKay and Dr. Keller become trapped in an underground mining chamber rocked by fierce seismic tremors.

Feb 8, 2008
Midway
Season 4Episode 1760 min

Midway

Mr. Coolidge is the newest member of the IOA and openly distrustful of alien participation in any facet of the Stargate program. Despite his bias, the IOA has entrusted him with interviewing Teyla Emmagan and Ronon Dex about their suitability to continue as members of the Atlantis expedition. This does not bode well for Ronon who is next on the list to travel to Earth for questioning.

Feb 15, 2008
The Kindred, Part 1
Season 4Episode 1860 min

The Kindred, Part 1

As Teyla continues to search for her people, a mysterious new illness sweeps throughout the galaxy, killing scores of people.

Feb 22, 2008
The Kindred, Part 2
Season 4Episode 1960 min

The Kindred, Part 2

An old friend's unforeseen return spurs a race against time to rescue a missing teammate.

Feb 29, 2008
The Last Man
Season 4Episode 2060 min

The Last Man

Following another unsuccessful search for Teyla, Lt. Colonel Sheppard returns home to Atlantis to find the city completely abandoned.

Mar 7, 2008

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