Ronon gets captured. Kills a lot of Wraith. Gets saved. End of review.
If you don't get the reference above, you probably aren't a fan of Ronon. If you do do get the reference above, this episode is for you.
Ronon Dex finds himself on a planet that he finds familiar. It turns out that this planet is the one he stayed at for too long, and brought the Wraith to. The team is captured but later freed as Ronon is to be given to the Wraith, who gave the villagers a way of contacting them if Ronon returned. Ronon is then captured and put back on Sateda, his home planet, where he is made to fight for his life.
Wraith after Wraith comes to attack Ronon, while he deals with the painful memories of his loved ones being killed and culled by the Wraith. Eventually, Atlantis managed to find where he is and sends a Jumper to Sateda, via one of Earth's space vessels, to save Ronon. Surprisingly, both Rodney and Carson agree to come along.
During Ronon's one on one fight with the big bad, he gets beaten to a pulp. Not knowing that Ronon threatened to kill anyone who killed the Wraith he was fighting, Carson and Ronon decide to shoot him with a drone, killing him. Everyone flees into the jumper and they fly off.
Ronon then asks who shot the drone and both Rodney and Carson say it was them. John then tells them what Ronon told him and Teyla, and they decide to put the blame on each other, but ultimately onto Carson. Ronon then surprisingly hugs Carson before fainting from exhaustion.
All in all, this was a great Stargate episode. Lots of action and character development, as well as backstory development. Just what an episode needs.