8.5/101,125 votes#1 - Adrift (2)
Season 4 Episode 1 - Aired 9/27/2007
Floating in deep space with the city's protective shield failing, the team must do all they can to keep Atlantis alive. A radical injury threatens Dr. Weir's life.
Director: Martin Wood
Writer: Martin Gero
8.5/101,007 votes#2 - Lifeline (3)
Season 4 Episode 2 - Aired 10/4/2007
Colonel Sheppard and his team embark on a risky mission to steal a Z.P.M. power module from the Replicators -- but must rely on a compromised Dr. Weir to succeed.
Director: Martin Wood, Andy Mikita
Writer: Carl Binder
7.5/10970 votes#3 - Reunion
Season 4 Episode 3 - Aired 10/11/2007
When a group of Ronon's people enlist the team's help in raiding a Wraith weapons facility, Ronon reconsiders whether his future lies in Atlantis or with his friends.
Director: William Waring
Writer: Paul Mullie, Joseph Mallozzi
7.1/10946 votes#4 - Doppelganger
Season 4 Episode 4 - Aired 10/18/2007
During an off-world mission Colonel Sheppard unknowingly becomes host to an alien entity, which infects others in Atlantis and afflicts them with terrifying nightmares.
Director: Robert C. Cooper
Writer: Robert C. Cooper
7.7/101,032 votes#5 - Travelers
Season 4 Episode 5 - Aired 10/25/2007
Colonel Sheppard is captured by the inhabitants of a generational ship and their beautiful leader, who wish to use his ability to use Ancient technology for their own ends.
Director: William Waring
Writer: Paul Mullie, Joseph Mallozzi
8.0/10999 votes#6 - Tabula Rasa
Season 4 Episode 6 - Aired 11/1/2007
When a virus causes amnesia in everyone except Teyla and Ronon, the Atlantis team must work together to find a cure before their memories fade entirely.
Director: Martin Wood
Writer: Alan McCullough
7.1/10960 votes#7 - Missing
Season 4 Episode 7 - Aired 11/8/2007
During a visit to New Athos, Teyla and Dr. Keller find themselves on the run from a primitive tribe of warriors.
Director: Andy Mikita
Writer: Carl Binder
7.8/10946 votes#8 - The Seer
Season 4 Episode 8 - Aired 11/15/2007
The team meets a man with extraordinary prophetic abilities, who gives them a dark prediction about Atlantis's future. The Wraith seek a new alliance with Atlantis in their war with the Replicators.
Director: Andy Mikita
Writer: Alan McCullough
7.7/10983 votes#9 - Miller's Crossing
Season 4 Episode 9 - Aired 11/29/2007
Rodney McKay goes in search of his sister on Earth after she is kidnapped by the head of a powerful corporation.
Director: Andy Mikita
Writer: Martin Gero
8.0/10934 votes#10 - This Mortal Coil (1)
Season 4 Episode 10 - Aired 12/6/2007
A mysterious drone crashes into Atlantis, indicating that the Replicators may have found the city. But when Elizabeth Weir appears, the team realizes that the probe is just a part of a bigger mystery.
Director: William Waring
Writer: Brad Wright, Paul Mullie, Joseph Mallozzi
9.0/101,268 votes#11 - Be All My Sins Remember'd (2)
Season 4 Episode 11 - Aired 1/3/2008
With a plan to potentially extinguish the Replicator threat, the Atlantis team must seek an alliance with a fleet of Wraith ships.
Director: Andy Mikita
Writer: Martin Gero
8.0/10905 votes#12 - Spoils of War
Season 4 Episode 12 - Aired 1/10/2008
The team finds their former Wraith ally's hive ship drifting in space, which leads them to a secret project that could turn the tide of a civil war.
Director: William Waring
Writer: Alan McCullough
7.4/10925 votes#13 - Quarantine
Season 4 Episode 13 - Aired 1/17/2008
An automated lockdown traps Atlantis personnel in various parts of the city, each of them hoping the others will come to their rescue.
Director: Martin Wood, Andy Mikita
Writer: Carl Binder
7.2/101,033 votes#14 - Harmony
Season 4 Episode 14 - Aired 1/24/2008
Colonel Sheppard and Dr. McKay must protect a child princess on a pilgrimage before she can become queen, and learn that she has dangerous enemies threatening her life.
Director: William Waring
Writer: Martin Gero
7.3/10921 votes#15 - Outcast
Season 4 Episode 15 - Aired 1/31/2008
While on personal leave on Earth, Sheppard and Ronon learn that scientists have engineered a human-form Replicator -- who is now on the loose.
Director: Andy Mikita
Writer: Carl Binder, Joe Flanigan
7.4/10970 votes#16 - Trio
Season 4 Episode 16 - Aired 2/7/2008
McKay, Carter, and Keller are trapped in an underground chamber while on an off-world mission, with no apparent means of escape.
Director: Martin Wood
Writer: Martin Gero
8.9/101,186 votes#17 - Midway
Season 4 Episode 17 - Aired 2/14/2008
Teal'c visits Atlantis to counsel a headstrong Ronon, who is up for review by the I.O.A. But the two must work together when the Wraith invade the Midway space station in order to reach Earth.
Director: Andy Mikita
Writer: Carl Binder
7.7/10887 votes#18 - The Kindred (1)
Season 4 Episode 18 - Aired 2/21/2008
As a mysterious new illness sweeps through the Pegasus Galaxy, Teyla is convinced by a vision that the father of her child is trying to communicate with her.
Director: Peter F. Woeste
Writer: Paul Mullie, Joseph Mallozzi
7.9/10884 votes#19 - The Kindred (2)
Season 4 Episode 19 - Aired 2/28/2008
The team is shocked when an old friend, believed to be dead, miraculously returns to them. Teyla plans an escape from Michael's captivity.
Director: Martin Wood
Writer: Alan McCullough
8.8/101,156 votes#20 - The Last Man (1)
Season 4 Episode 20 - Aired 3/6/2008
Sheppard returns to Atlantis after a mission and finds the city abandoned, all systems dead -- and instead of ocean, sand dunes as far as the eye can see.
Director: Martin Wood
Writer: Paul Mullie, Joseph Mallozzi
The Best Episodes of Stargate Atlantis Season 4
Every episode of Stargate Atlantis Season 4 ranked from best to worst. Discover the Best Episodes of Stargate Atlantis Season 4!
With the Ancients' city of Atlantis discovered in the Pegasus Galaxy by Stargate Command, Dr. Elizabeth Weir and Major Sheppard lead a scientific expedition to...
Genres:Sci-Fi & FantasyAction & AdventureDrama
Network:Syfy
Season 4 Ratings Summary
"Adrift (2)" is the best rated episode of "Stargate Atlantis" season 4. It scored 8.5/10 based on 1125 votes. Directed by Martin Wood and written by Martin Gero, it aired on 9/27/2007. This episode is rated 0.0 points higher than the second-best, "Lifeline (3)".