The people of Falling Skies can be just as much a menace to humanity as their Espheni overloads.

'Falling Skies' Season 5: It's 'All About The Spikes', Sarah Carter Dishes On The New Maggie

Falling Skies final season is fast approaching, and a new promo indicates that Anne (Moon Bloodgood) will find herself in front of a firing squad. Comprised of American soldiers, this new threat comes just as the 2nd Mass has managed to knock the Espheni down a peg.

Unfortunately, the fish heads will find new ways to decimate the humans as well.

'Falling Skies' Season 5: Promo Reveals Premiere & Finale Titles, What's Next For The Masons?

"At the end of season 4, we took down the power core of the Espheni. Their electronics and their technology has been damaged irreparably. So now, now what's left?" actor Doug Jones (Cochise) teased at WonderCon, according to The Hashhtag Show. "The Espheni are going to up the ante on their organic and bio warfare. You'll see more Skitters, you're going to see other life forms that they've created that are going to be combating us."

Could this fire squad have something to do with the Espheni's attempts to alter humanity? Or is the 2nd Mass about to come in contact with more survivors a la the Charleston continuation of the American government?

Find out more when Falling Skies returns to TNT on June 28.