Olivia's sister, Rachel (Ari Graynor), visits; Walter, Peter and Olivia try to solve the murder of an esteemed epidemiologist, which may be linked to Olivia's abduction. false 2018-11-02 12:59:08 Frederick E.O. Toye J.J. Abrams Jeff Pinkner Roberto Orci Alex Kurtzman J.J. Abrams Jeff Pinkner Roberto Orci Alex Kurtzman 7.7 2009 49 https://www.thetvdb.com/banners/episodes/82066/412091.jpg 11 1 2009-01-20 srt srt progressive False False 183 82066 412091