Marshall interns at the corporation where Barney works and Lily finds that he is becoming a shallow jerk as he tries to fit in with his crude fratty coworkers. Meanwhile, Ted feels guilty when he receives several gifts from Victoria (Erika Singh) while he hasn’t sent her anything.
Jack bargains with a German intelligence agent in order to find the woman who can lead him to Bierko.
Buchanan chafes against the new chain of command as Homeland Security prepares to take over CTU operations.
Aaron receives a request for a secret meeting from Wayne Palmer, as Logan implements martial law in L.A.
It’s Mother’s Day again when Earl remembers that he has never given his mother a Mother’s Day gift Just as he and Randy are about to finish carrying out his long overdue gift his mother decides her repayment should include Earl doing something for his father.
Jack and Lynn must take action when they discover that the nerve gas is breaking through the protective seals that are keeping the CTU survivors alive.
Chloe wrestles with her grief over Edgar’s death, while Tony contemplates revenge against Henderson.
Martha bolster’s Logan’s spirit as he wavers under more political pressure from Gardner.
SG-1 discovers the village of Camelot on an alien world, and must face Merlin’s security system when they go in search of an Ancient weapon. Elsewhere, Earth and its allies assemble a fleet when a working Ori Supergate is discovered.
When Baltar wins the vote, Roslin considers stealing the election because she believes he is a Cylon collaborator.
Things are going great with Ted and Victoria’s relationship, but when Victoria is offered her dream job, the couple have to make serious relationship decisions. Meanwhile Marshall and Lily set out to purchase their wedding outfits and find out that none can afford what they bought.
Jack interrogates Henderson’s wife about her husband’s connection to the terrorists.
Lynn begs his sister to return his stolen keycard, while Tony regains consciousness and learns of Michelle’s fate.
Martha gives Logan the cold shoulder, while Curtis tracks another nerve gas attack to a local hospital.
Jack takes Henderson to CTU for questioning. Once there, he faces an unhappy reunion with his daughter, Kim.
Mike appeals to Martha for help as Logan faces pressure from his Vice-President to declare martial law on L.A.
Lynn connects the theft of his keycard to an impending strike on CTU, but his warning comes too late to stop a terrorist from infiltrating the building.
Vala Mal Doran makes contact with Stargate Command from the Ori home galaxy, and tells the story of her life undercover in a village of followers building the Ori’s invasion fleet.