THE "CONSPIRATII," A SINISTER GROUP COMMITTED TO FIGHTING DARKNESS THAT WALKS THE EARTH, TAKES ON GAVIN -- WITH EXPLOSIVE RESULTS -- AND BRIAN, LOUISE AND ALEXIS' ROMANTIC TRIANGLE COMES TO A NASTY FINAL CONFRONTATION, ON ABC'S "666 PARK AVENUE"

"The Elysian Fields" - Who or what is the "conspiratii"? When Jane tries to crack the meaning of this mysterious word that keeps popping up in Peter Kramer's journal, a secretive Detective Cooper shockingly reveals his part in the shadowy group. Jane agrees to be their eyes and ears at The Drake, but Gavin is one step ahead of her. Meanwhile, Henry tries to track down Jane's estranged father to surprise her at a splashy engagement party Olivia is throwing them. Jane and Henry spend a magic night at the Dorans' party, while on another floor there is no love lost between Alexis and Louise when they have a final face-off and Louise learns the true depth of Alexis' hate for her, on "666 Park Avenue," SUNDAY, JANUARY 20 (10:01-11:00 p.m., ET), on the ABC Television Network.

"666 Park Avenue" stars Rachael Taylor as Jane Van Veen, Dave Annable as Henry Martin, Mercedes Mas�hn as Louise Leonard, Robert Buckley as Brian Leonard, Helena Mattsson as Alexis Blume, Erik Palladino as Tony DeMeo and Samantha Logan as Nona Clark, with Vanessa Williams as Olivia Doran and Terry O'Quinn as Gavin Doran.

Guest starring are Richard Short as Harlan Moore/Patrick Corey, Teddy Sears as Detective Cooper, Misha Kuznetsov as Kandinsky, William Sadler as Nate McKenny, Elizabeth Morton as Eunice Moore, Leajato Robinson as Smith, Christopher Saunders as Jones, Fulvio Cecere as security guard and Andi Matichak as Shannon.

"The Elysian Fields" was written by Elizabeth Craft & Sarah Fain and directed by Chris Misiano.

"666 Park Avenue" is broadcast in 720 Progressive (720P), ABC's Selected HD Format, with 5.1 channel surround sound. A TV parental guideline will be assigned closer to airdate.