"Falling Skies" season 4 spoilers revealed more alien hybrids and backstory for Anne Glass character, the showrunner and cast revealed during the San Diego Comic Con interaction with fans.

Showrunner David Eick revealed "Falling Skies" season 4 spoilers when he said that fans can expect more hybrid babies and human mutants as the series rolls along.

He said there would be "new variations on existing species. The Espheni are very immersed in genetics, the idea of altering, the idea of adapting, and corrupting, mutating. It's a terrifying idea, one that resonates. It does feel like a kissing cousin of where we are in real life."

"Hopefully it'll scare the s- out of you," he added.

As for Lexi, Entertainment Weekly revealed, she will undergo another transformation. A clip for next episode shows Pope and Hal and other members of the 2nd Mass trying to bring Lexi inn but he supporters prevent them from doing so by linking arms.

Meanwhile, Lexi is inside a glowing cocoon. As Scarlett Byrne, the actress who plays Lexi, said: "She's gonna go through a change."

"[Lexi] steps into her own. She's constantly changing, but this is the beginning of a very drastic physical and mental change for her," Scarlett Byrne added, per InsideTV.

Another clip shows that a moment from Anne's past where Karen is cradling Lexi and tells her: "She's my creation. In time, she'll be just like me. She'll change the face of history."

Moon Bloodgood, who plays Anne, revealed "Falling Skies" season 4 spoilers, during the Comic-Con that they will get to see Anne's son. "We never really understood what life was like for her before the invasion.... It was probably my favorite episode to shoot," she said.

According to the site DenOfGeek, Tom will arrive at Lexi's sanctuary, "but his righteous indignation is hardly enough to break his daughter free from whatever strange cocoon she's in."