Susan is horrified when the sexy Internet company she's been working for makes her their billboard model; Gabrielle shares her secret; Renee tries to steal Keith away from Bree.
Gaby intends to get even with a parent volunteer at Juanita's school; Bree makes a discovery about her daughter's business.
A federal agent goes undercover in Los Angeles to try and infiltrate a group of Islamic terrorists. Darwyn al-hakim finds an Islamic extremist guy named Farik. Farik asks him the join Sleeper Cell's plan to attack Los Angeles.
Sarah, John and Cameron track down another name on their list and wonder why a T-1001 would need a doctor. Meanwhile, a woman from Derek's past surprises him in the present.
Farik recruits another Cell member, bio-chemical student Eddy Pangetsu, to test the anthrax that he and Ilija have received. Darwyn learns that the Cell is planning an anthrax attack inside a mall and tries to inform the FBI of where and when but it turns out the anthrax was fake and just a rehearsal. The FBI pulls back just before they blow Darwyn’s cover.