Desperate Housewives: Now You Know

"Now You Know" is the first episode of season four of the dramedy series Desperate Housewives and the 72nd episode of the series overall. It was directed by Larry Shaw and written by series creator Marc Cherry. It first aired on ABC on Sunday, September 30th, 2007.

Synopsis
After agreeing to run away with Carlos on her wedding night to Victor, Gabby gets a call from Carlos, informing her that Edie has tried to commit suicide. One month later, Lynette tries to hide the fact that she has cancer from everyone, despite the fact she has no hair while she continues to deal with her difficult mother Stella. Meanwhile, Bree continues to hide the fact that her daughter is illegitimately pregnant by pretending to be pregnant herself. An old friend of Susan's, named Katherine Mayfair, moves back onto Wisteria Lane along with her second husband.