Marvel has released the second TV spot for Thor: The Dark World, which features Christopher Eccleston's Malekith the Accursed issuing a stern warning to Thor (Chris Hemsworth). In theaters this November, the Norse God must protect Jane Foster (Natalie Portman) by teaming up with his exiled brother Loki (Tom Hiddleston). Stay tuned for more footage from director Alan Taylor's Marvel sequel as we get closer to its November 8 release date.