COULSON'S QUEST ERUPTS WITH THE SHOCKING SECRETS OF THE ANCIENT CITY, ON "MARVEL'S AGENTS OF S.H.I.E.L.D." ON ABC

"... Ye Who Enter Here" - SHIELD discovers the ancient city before Hydra, but uncovering the secrets may require one of Coulson's team to make the ultimate sacrifice. Meanwhile, May and Skye race to get to Raina before Whitehall takes her, on TUESDAY, DECEMBER 2 (9:00-10:00 p.m., ET) on the ABC Television

"Marvel's Agents of S.H.I.E.L.D." stars Clark Gregg as Agent Phil Coulson, Ming-Na Wen as Agent Melinda May, Brett Dalton as Grant Ward, Chloe Bennet as Skye, Iain De Caestecker as Agent Leo Fitz, Elizabeth Henstridge as Agent Jemma Simmons and Nick Blood as Lance Hunter.

Guest starring are B.J. Britt as Triplett, Adrianne Palicki as Bobbi Morse, Henry Simmons as Alphonso "Mack" Mackenzie, Ruth Negga as Raina, Patton Oswalt as Sam/Billy Koenig, Reed Diamond as Daniel Whitehall, Jeffrey Corbett as Chad, and Brittnee Garza as Cashier.

"... Ye Who Enter Here" was written by Paul Zbyszewski and directed by Billy Gierhart.

"Marvel's Agents of S.H.I.E.L.D." is broadcast in 720 Progressive (720P), ABC's selected HDTV format with a 5.1 channel surround sound. A TV parental guideline will be assigned closer to the airdate.

For more information on "Marvel's Agents of S.H.I.E.L.D.," visit ABC.com