The Prodigal

In search for Teyla's baby, Michael and his hybrids infiltrate Atlantis. While the hybrids take control of the city's systems one by one, it is up to Sheppard's and Lorne's teams to retake the city. But first McKay has to disable a seemingly impenetrable stun energy field set up by Michael. Teyla escapes with her son thanks to Woolsey and Ronon and McKay, Sheppard, and Zelenka manage to defeat Michael's plan, forcing him to flee when Sheppard and a strike team kill his remaining hybrids. Michael is finally defeated by Sheppard and Teyla in a hand to hand fight and Teyla finally kills Michael by throwing him from the top of Atlantis' Control Tower.