Watch Stargate Atlantis Online

After the gate address to the lost city of Atlantis is found, an expedition departs to the Pegasus Galaxy to check it out. Unfortunately, the city is found on the bottom of the ocean floor, and its shields are quickly losing power. In search of a ZPM or a safe place to stay, a team is sent to the planet Athos. They befriend the planet's inhabitants, but evil beings known as the Wraith then arrive. Stream all the latest Stargate Atlantis episodes only at iwatchstargateatlantis.com for free.

Sheppard and his team, along with Weir and Beckett, arrive in the Asuran's city and destroy the Replicators' stargate operations. The team then escapes, and tries to reprogram a Replicator that had been left floating in space, in order to freeze all the Replicators, so they can rescue O'Neill and Woolsey. However, after O'Neill and Woolsey are captured, the team must come up with a plan B. as plan A has failed. The team goes about this new plan and feeds Woolsey misinformation, as they suspect he will be probed by the Replicators. But will this new plan succeed where their original one failed? Time is against them. Watch this episode on watch Stargate Atlantis online for free.

While Atlantis and Earth successfully test a a multiple gatea bridge between their two galaxies, the Daedalus detects another ship. When they try to make contact with the ship, the ship drops out of its time dilated hyper-warp. They learn it is a Lantian war ship returning from a long journey, headed back to Atlantis. When the Lantian crew learns that all their people had all left Atlantis ten thousand years ago, and that they are the only ones that remain, they politely ask the SGA crew evacuate back to Earth. Gen. Oa 'Neill and Richard Woolsey arrive in Atlantis to try to negotiate with the Lantians, but they are reluctantly forced to agree to leave Atlantis, while Ronon and Teyla decide to stay behind in the Pegasus galaxy. However, the newly found Latians turn out to be overly confident on their ability to control an impending attack by the Asuran Replicators. Gen. Oa 'Neill and Woolsey then become trapped on Atlantis; as Sheppard, Weir and the rest of SGA break rank with the SGC to try to rescue them and defeat the Replicatorsa ' attack on Atlantis. Dr. McKay can get them back into the heart of Atlantis, but what sort of resistance will they encounter? Online Stargate Atlantis episodes can be found at iwatchstargateatlantis.com for free.

With no way out and trapped on a planet with a volcano, it is up to Dr. McKay to find a way to get the team out of there. Watch free Stargate Atlantis episodes online at iwatchstargateatlantis.com.

The team learns that a rogue Wraith has acquired several ZPMs to power a formidable new hive ship -- and he is headed for Earth. Stargate Atlantis episodes can be watched online at iwatchstargateatlantis.com.

Daniel Jackson arrives on Atlantis on a research mission to locate Janus’ laboratory. However, its discovery triggers off an alien invasion and the possible destruction of the Wraith. Watching Stargate Atlantis online could not be any easier than iwatchstargateatlantis.com.

In the city of Las Vegas, Detective John Sheppard must solve the case on a long string of unusual murders. Stargate Atlantis episodes can be watched online at iwatchstargateatlantis.com.

The Wraith, or at least one Hive ship, knows of Atlantisa ' survival. They learn Michael is on the ship, and finally communicate with him. He tells them that too many Wraith awoke to too few humans, and a civil war then broke out amongst the Wraith. Michaela 's faction wants to get a hold of Dr. Becketta 's retro virus in order to fight the other Wraith factions. They say they can survive by feeding on Wraith who have been converted to humans. Although the Atlantis team is reluctant to believe the Wraitha 's motives, they must take the risk to help Wraith in killing other Wraith. Things go horribly wrong, as the SGA finds the Wraith ship has a totally different agenda. Can Atlantis survive this betrayal? Things look dire for Atlantis! After all, they have given away their Wraith killing information, as well as the fact the Wraith know that Atlantis still exists. Stream all the latest Stargate Atlantis episodes only at iwatchstargateatlantis.com for free.

Sheppard and his team head to a planet to investigate reports of a superhero in hopes this person might help in their struggle with the Wraith. What they find is a person they have had to unfortunately deal with in the past. However, soon after this meeting, an even worse foe turns up when word spreads that Sheppard is on the planet.

Now that they have a Replicator tracking unit to detect the enemy ships, the Atlantis team must destroy them once and for all. However, to do so they have to ally with the Wraith... who have their own plans.

After McKay discovers that a mist covering an alien planet can be used as a powerful energy source for the Stargate, the expedition is able to dial back to the SGC. Told that the Prometheus is being outfitted with Asgard hyperdrives capable of quickly returning them to the Pegasus Galaxy, members of the expedition return to Earth. However, their hopes of returning to Atlantis are shattered when they are informed that due to an accident aboard the Prometheus, they can't go back. Now separated from Atlantis and stuck on Earth, the team finds strange changes in the things they see and encounter there; the friends and people they knew at the SGC are acting differently than expected. Sheppard begins to suspect what is really going on, but how can he determine if he is correct? Stream all the latest Stargate Atlantis episodes only at iwatchstargateatlantis.com for free.

Shepparda 's team discovers a space station filled with humans locked in a transporter module for hundreds of years. They bring two of them out of status, Jamus and Herick, and are told the survivors 'froze themselves in the hopes of outliving the Wraith who were attacking them. However, an explosion causes the station to fall out of orbit and traps the team throughout the base. Online Stargate Atlantis episodes can be found at iwatchstargateatlantis.com for free.

McKay finds himself trapped in a Puddle Jumper which has crashed into the ocean and is sinking to the bottom. Col. Sheppard must not only locate McKay and the sinking missing Jumper before ita 's too late, but also must figure out a rescue strategy to reach the Jumper at the depths to which it is sinking.

Season 4 begins as Dr. Weir clings to life and Dr. McKay tries to save Atlantis, which is badly damaged and lost in space after the Replicator attack.

Teyla and Dr. Keller discover an abandoned Athosian settlement and a hostile warrior tribe on New Athos. Watching Stargate Atlantis online could not be any easier than iwatchstargateatlantis.com.

Team finds a planet that has had almost no Wraith culling in the last ten years, or since the time a Wraith ship crash there. However, they are told that one or two survivors must still be alive, as occasionally a villager dies in a culling way. Sheppard offers his teams help to kill the last of the Wraith for them, only to discover when they it, it is a young Wraith female, and she is with the villager who has been protecting her, and acting as her father. The team becomes intrigued by this pair when the father says the deaths could not have been from his daughter, as he has invented a drug that blocks a Wraitha 's need to cull on humans.