Falling Skies Season 4 Finale: Space Oddity/Shoot The Moon

The two part Season 4 finale of Falling Skies, titled "Space Oddity" and "Shoot the Moon," will air tonight on TNT.

In "Space Oddity," Tom's mission to destroy the Espheni Power Core is complicated by Lexi's return. Lexi is forced to take extreme measures to save her father's life – and her own – after a Beamer malfunction. Meanwhile, the 2nd Mass fears an impending Espheni strike by the scorched Overlord.

Treva Etienne guest-stars.

In "Shoot the Moon," with the weight of humanity's survival on Tom and Lexi's shoulders, they must defeat Tom's 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.

Mira Sorvino and Treva Etienne guest-star.

TNT has released several preview images and a video, included below:

"Space Oddity" is directed by Olatunde Osunsanmi and written by M. Raven Metzner. "Shoot the Moon" is directed by Greg Beeman and written by David Eick.

The Falling Skies Sesaon 4 finale airs Sunday, August 31, beginning at 9 p.m. ET on TNT.