MARVEL'S AGENTS OF S.H.I.E.L.D. - "...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 Network.(ABC/Kelsey McNeal) PATTON OSWALT, MING-NA WEN