The Atlantis team must decide the fate of a colony of Wraith they have turned into humans. Dr. Weir must defend her leadership when she is evaluated by the I.O.A.

SG-1 investigates a problem off-world and soon finds that they have become victims themselves: they cannot stay awake. Meanwhile, Vala Mal Doran undergoes an evaluation on Earth, hoping to join SG-1.

While Tommy and Johnny have another encounter, Janet and Angie re-establish their acquaintance. Meanwhile, Sheila is unhappy when she sees Tommy and Angie together. Maggie wants to get back together with Sean. Mike hooks up with a woman at a bar, making his roommate, Chris, jealous. Franco finds out about Jerry’s second job at the pub, and the money in the no-smoking jar goes missing.

After a strange accident sidelines Eureka’s sheriff, U.S. Marshal Jack Carter takes over the investigation into the mysterious phenomenon that led to the death of a resident.
Carter learns about the secret purpose of the town while trying to re-establish a connection with his angry and bitter daughter, Zoe. He develops a friendly working relationship with government liaison Allison Blake and meets some of the more eccentric residents of Eureka.

After a strange accident sidelines Eureka’s sheriff, U.S. Marshal Jack Carter takes over the investigation into the mysterious phenomenon that led to the death of a resident.
Carter learns about the secret purpose of the town while trying to re-establish a connection with his angry and bitter daughter, Zoe. He develops a friendly working relationship with government liaison Allison Blake and meets some of the more eccentric residents of Eureka.

Kyle attempts to figure his emotions and sudden attraction to next door neighbor Amanda, while Lori and Josh are also experiencing love pains of their own.

With the help of Dennis Ryland, NTAC track down the remining members of the NOVA group. Nikki pays Shawn a visit.

The team desperately attempts to stop two Wraith hive ships from reaching Earth. Sheppard must rely on an old foe to rescue McKay and Ronon.

As the Ori invade the Jaffa planet Chulak, Vala and Daniel must deal with their leader: Vala’s young daughter, rapidly aged by the Ori to serve their purposes.

After a game of street hockey, Sean takes some sleeping pills believing they are painkillers and it has an unwanted consequence. In the meantime, Tommy and Angie decide to go on their fake date that they know will upset Janet. After having a close call, Lou gets a new angle on firefighting from his Uncle Red.