Falling Skies

Season 3, Episode 9

Episode Title: Journey to Xilbalba

Air Date: 2013-07-28

Overview:

Tom uncovers confidential intelligence about the heart of the alien operation. Meanwhile, Charleston prepares to mount an offensive against the Espheni, but a massive explosion brings the operation to a halt. And the identity of the mole is finally uncovered, but not before more blood has been shed.