"Falling Skies" season 4 spoilers will revolve around Karen Nadler's death but the showrunners have definitely not forgotten her as she will be integrated into the storyline in some capacity. The key art released by TNT revealed that the tide may be turning against the alien invaders.

Sarah Carter, who plays Margaret, revealed to Buddy TV that Karen Nadler will always be the catalyst for a lot of things that occur on the show.

"She's the reason for everything in the next season," she said. "For everything - us separating and coming back together and she has a lot to do with Scarlett Byrne's character."

More "Falling Skies" season 4 spoilers might be hinted by the key art released by TNT.

The "Falling Skies" poster was published on IGN and it shows the decapitated head of an alien pierced with an M16 Armalite rifle standing upright. According to the website, the key art is trying to send a "striking message to the Skitters-in the form of one alien who most certainly didn't come out on the winning side when it came to his last battle."

Another key art shows Noah Wyle's character Tom Mason standing on top of a wrecked car and shooting at the sky along with the tagline, "fight off extinction."

In the exit interview with TV Fanatic back in August, Noah Wyle offered some "Falling Skies" season 4 spoilers of his own. When he was asked whether there's a chance that Karen will be seen in future episodes, he said that he couldn't say absolutely because they did find a way to use Dai (Peter Shinkoda) again who was hired to play the husband of Anne Glass.

Talking about Karen, Noah Wyle said: "She could always appear in some fashion on the show."

More "Falling Skies" season 4 spoilers will be revealed once they are out as the series will air on June 22 for 12 episodes.