Falling Skies Season 4 Episode 6: Door Number Three

A brand new episode of Falling Skies, titled "Door Number Three," will air tonight on TNT.

In "Door Number Three," After months apart, Tom finally reunites with his family and the 2nd Mass. But the joyous reunion is cut short as Lexi undergoes a health crisis tied to her hybrid DNA. The crisis pits family members against one another as they fight over how to deal with Lexi's illness. Anne goes to great lengths to save her daughter.

Falling Skies, "Door Number Three," airs Sunday, July 27 at 10 p.m. ET on TNT.