Stargate Atlantis Blah Blah Blah

In the season finale, the family prepares for the annual Pioneer Week. Bill and Alby butt heads over the control of UEB. Meanwhile, Margene reveals the truth to Ana. Writer: Dustin Lance Black, Eileen Myers, Will Scheffer, Mark V. Olsen Director: Julian Farino Guest star: Anne Dudek (Laura Grant), Garrett Grey (Raymond Henrickson), Mireille Enos (Kathy Marquart), Tina Majorino (Heather Tuttle), Branka Katic (Ana), Lawrence O'Donnell Jr. (Lee Hatcher), Aaron Paul (Scott), Audrey Wasilewski (Pam Martin), Mary Kay Place (Adaleen Grant), Keegan Holst (Wayne Henrickson)

Jack, Sydney, Irina, Vaughn and Nadia parachute into Sovogda. They're supposed to dismantle a giant red ball turning people into zombies. At APO, Marshall and Weiss use the Blackwell Index to blackmail the Russian minister into giving them the access codes to a Russian satellite, they discover that Elena is uplinking the satellite. A CIA agent, Brodien reminds them that the Rambaldi device is broadcasting a subaudible frequency that physiologically alters people who drink it and it is irreversible. Elena learns of the APO team's arrival.

Chuck learns the most shocking secret of her life and refuses to forgive Ned. In order to take the Pie Maker's mind off of Chuck, Emerson gets him to solve the mystery of a man killing life insurance agents and hiding them in snow banks. Oscar Vibenius returns to investigate why Chuck has a unique smell. Meanwhile, the Aunts' antidepressant-laced pies begin to show some hallucinogenic effects.

Gabrielle, Susan, and Lynette rush to the hospital in the middle of the night after receiving a phone call from Danielle telling them about Rex's heart attack. Bree confides that she feels guilty because she and Rex were having a fight when he had his heart attack and that now he needs a pacemaker. Before his operation, Rex apologizes for being a bad husband. After not getting any better, the doctor suggests to Rex that maybe Bree was tampering with his medication. Rex writes her a note telling her that he understands, and then dies not knowing the real truth. ...

In order to save Will's life, Sydney and Vaughn must destroy a familiar looking Rambaldi device, while Jack makes a risky deal with Khasinau's representative, Mr. Sark. Meanwhile, the CIA believes that one of their own is a mole for "The Man"; the Alliance comes to a decision regarding the fate of Emily Sloane; Dixon's suspicions about Sydney intensify; and Sydney finds herself face-to-face with "The Man."