ANNA AND DIANA ARE FACE TO FACE FOR THE FIRST TIME IN 15 YEARS, WHILE ERICA SEEKS TO FIND IF THE V'S DID SOMETHING TO HER WHEN PREGNANT WITH TYLER, ON ABC'S "V"

"Serpent's Tooth" - Anna and Diana square off in the dark bowels of the Mothership - Diana has been down there for 15 years and not had a single glimpse of Anna. Meanwhile, Erica has Tyler's blood analyzed, and learns the V's did something sinister to her when she was pregnant with him, on "V," TUESDAY, JANUARY 11 (9:00-10:00 p.m., ET) on ABC.

"V" stars Elizabeth Mitchell as Erica Evans, Morris Chestnut as Ryan Nichols, Joel Gretsch as Father Jack, Charles Mesure as Kyle Hobbes, Logan Huffman as Tyler Evans, Laura Vandervoort as Lisa, with Morena Baccarin as Anna and Scott Wolf as Chad Decker.

Guest stars include Jane Badler as Diana, Bret Harrison as Dr. Sidney Miller, Roark Critchlow as A.D. Paul Kendrick, Rekha Sharma as Agent Malik, Mark Hildreth as Joshua, Christopher Shyer as Marcus.

"Serpent's Tooth" was written by Gregg Hurwitz and directed by Steve Shill.

"V" is broadcast in 720 Progressive (720P), ABC's selected HDTV format, with 5.1 channel surround sound. This program carries a TV-14,S,V parental guideline.

For more information on "V," please visit ABC.com and become a fan of the show on Facebook: http://www.facebook.com/V. You can also follow "V" on Twitter: @V_ABC.