Falling Skies Temporada 4 Episódio 12

With the weight of humanitys survival on Tom and Lexis shoulders, they must defeat Toms mortal enemy and find a way to destroy the omnipotent Espheni Power Core. Meanwhile, a new, terrifying Espheni Bomb is dropped onto Chinatown, immobilizing the 2nd Mass and preparing them for Human Skitterizaton.