Stargate Atlantis/Season One

Season One
Stargate Atlantis
Season Premiere	July 16, 2004
Season Finale	March 25, 2005
Episode Count	20
Notable Episodes	1x01 - Rising (1) 1x02 - Rising (2) 1x19 - The Siege (1) 1x20 - The Siege (2)
Previous N/A	Next Season Two

Season One of Stargate Atlantis premiered on July 16, 2004. This season saw the arrival at Atlantis and the subsequent introduction of the Wraith, a deadly enemy that was capable of beating back the superior technology and firepower of the Ancients by sheer numbers. Season One also features the ZPM search plot thread, with the Atlantis team attempting to find an Ancient Zero Point Module to power up the Lost City's defenses, a search that intensifies in later episodes as the Wraith send a massive attack force with the intention of capturing the Lost City's intergalactic-transit capable Stargate and finding a way to use it to invade our galaxy, which they consider to be a massive, unspoiled food source.

Episodes

#	#	Title	Written By	Directed By	Airdate
1	1	Rising (1)	Brad Wright & Robert C. Cooper	Martin Wood	July 16, 2004
A new Stargate team, led by Dr. Elizabeth Weir embarks on a dangerous mission to a distant galaxy, where they discover the mythical lost city of Atlantis -- and a deadly new enemy that feeds on human fear.
2	2	Rising (2)	Brad Wright & Robert C. Cooper	Martin Wood	July 16, 2004
3	3	Hide and Seek	Brad Wright & Robert C. Cooper	David Warry-Smith	July 23, 2004
McKay volunteers to be the first to try Beckett's newest ATA gene therapy. But things go wrong when the device cannot be removed, and is stopping Dr. McKay from being able to eat or drink and endangering his life. Teleplay by Robert C. Cooper
4	4	Thirty Eight Minutes	Brad Wright	Mario Azzopardi	July 30, 2004
The Stargate team must rush to save Major John Sheppard after he becomes lodged in the Stargate, with only 38 minutes until the gate automatically disengages, and Sheppard is expelled into space, where he will surely asphyxiate.
5	5	Suspicion	Kerry Glover	Mario Azzopardi	August 6, 2004
After several attacks by the Wraiths, Dr. Elizabeth Weir contemplates if there is a spy among the team, with all signs pointing to Teyla. Feeling betrayed by the team's suspicions, the Athosians move to a newly discovered land. Teleplay by Joseph Mallozzi & Paul Mullie
6	6	Childhood's End	Martin Gero	David Winning	August 13, 2004
Sheppard, Dr. Weir, and the rest of the team visit a new planet, M7G-677, where no one is older than 24 thanks to a ritual suicide that the citizens believe is keeping the Wraith at bay.
7	7	Poisoning the Well	Mary Kaiser	Brad Turner	August 20, 2004
While on the planet Hoff, Dr. Beckett strives to help the Hoffans who are working on a vaccine against the Wraith. Despite the advice against taking the vaccine due to the threat of violence and high death rate, the Hoffans take the risk. Teleplay by Damian Kindler
8	8	Underground	Peter DeLuise	Brad Turner	August 27, 2004
The team visits the Genii, a peaceful farming community, with the goal of trading for food to allow the team to continue to survive. Things take a turn, however, when they discover that the Genii are planning a massive attack against the Wraith.
9	9	Home	Joseph Mallozzi & Paul Mullie	Holly Dale	September 10, 2004
Upon arriving at a new planet, M5S-224, the team discovers that they can gate back to Earth. The team sets out, with the intention of returning thanks to a new hyperdrive. But when the engines suddenly explode, the team deals with a new situation.
10	10	The Storm	Jill Blotevogel	Martin Wood	September 17, 2004
Sheppard and Teyla discover that a massive storm is approaching the city. The team must evacuate the city, and the Manarians offer to give them shelter. As they work to figure out a way to power up the shield, the city is invaded by the Genii. Teleplay by Martin Gero
11	11	The Eye	Martin Gero	Martin Wood	January 21, 2005
Sheppard plays a dangerous game of cat and mouse as he attempts to regain control of Atlantis from the Genii, who have taken the city along with Weir and McKay hostage.
12	12	The Defiant One	Peter DeLuise	Peter DeLuise	January 28, 2005
Sheppard and McKay set out, along with two scientists, to explore when they stumble upon a distress beacon coming from a Wraith ship. When they move to investigate, they discover that the ship has been sending out its SOS signal for 10,000 years.
13	13	Hot Zone	Martin Gero	Mario Azzopardi	February 4, 2005
A team of scientists is surveying the city for damage after the storm when they unknowingly release a virus causing hallucinations and death. The virus infects McKay, Zelenka, and Ford leaving Sheppard to stop it from spreading further.
14	14	Sanctuary	Alan Brennert	James Head	February 11, 2005
While searching a new planet, Sheppard and the team find a paradise world, Proculus, that would make an ideal sanctuary for those fleeing from the Wraith. The local inhabitants, however, believe their goddess will not permit it.
15	15	Before I Sleep	Carl Binder	Andy Mikita	February 18, 2005
During an exploration of the city, Sheppard and the team find an old woman in suspended animation. Thinking her to be an Ancient, the team wakes her up, only to discover that it is Dr. Weir.
16	16	The Brotherhood	Martin Gero	Martin Wood	February 25, 2005
The team searches for a valuable Zero Point Module rumored to be hidden on the planet Dagan, where the Sudarians were trusted with the module over 10,000 years ago. In their search, the team begins to worry about their new allies and their motives.
17	17	Letters from Pegasus	Carl Binder	Mario Azzopardi	March 4, 2005
McKay discovers a way for the team to send messages to Earth, allowing the team to send messages to their loved ones as the Wraith approach the city. Sheppard and Teyla leave Atlantis in the hopes of gathering information about the Wraith army.
18	18	The Gift	Robert C. Cooper & Martin Gero	Peter DeLuise	March 11, 2005
Plagued by terrifying nightmares, Teyla begins to recall a time when she and her father were captured by the Wraith and subjected to disturbing experiments. With the help of an old Athosian woman, Teyla looks deep into her past. Teleplay by Robert C. Cooper
19	19	The Siege (1)	Martin Gero	Martin Wood	March 18, 2005
With a group of Wraith hive ships on the way to Atlantis, the team searches for a place to flee and a way to destroy the city. McKay leads a team to try and activate the Ancients' orbital weapons platform to destroy the Wraith.
20	20	The Siege (2)	Joseph Mallozzi & Paul Mullie	Martin Wood	March 25, 2005
Just as the team is beginning to lose hope, Col. Everett is sent from the Stargate Program on Earth. As Everett and the team strategize, a new battleship, the Daedalus, arrives with a new Zero Point Module, bringing with it new hope.