Falling Skies S03 E09 Journey to Xilbalba

"We're not just fighting for our lives. We're fighting for our existence."

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.