The first vignette in this Wednesday's episode is described by Behr as a sequel to Serling's 1961 "It's a Good Life" with Bill Mumy. In the original, Mumy is a 7-year old Anthony Fremont who develops psychic powers that allow him to kill people whose thoughts he finds displeasing.

In the Behr-penned sequel, "It's Still a Good Life," Fremont is played by a grown Mumy and his real-life daughter plays Fremont's child, who begins to develop similar abilities.

"I know his daughter is a very wonderful little actress," Behr explains. "I thought, 'Boy, what are the chances of that same red hair, same face? There's a sequel right there in front of my eyes.'"

Actress Cloris Leachman played Anthony's mother Marion in the original and reprises the role Wednesday. Mumy says Behr was insistent about getting Leachman back.

"We were very lucky," he says. "She is proprietorial about it and quickly came on board. Cloris Leachman is a national treasure. What a gift for me, as an actor, to be working opposite her again."

The second half of the show will be a remake of another old episode, this one from 1960. "The Monsters Are Due on Maple Street" concerns a middle-class man driven to paranoia when he loses contact with the outside world.

"With 'Maple Street,' there's a reason to do it as a remake, because that paranoia, that fear, it's like 40 years have not come and gone," Behr says. "That fear has moved from the fear of communism and bug-eyed aliens, and now it's terrorism. But that fear and what it does to people remain the same. That's why it's a valid story to do."

Read more about this week's TWILIGHT ZONE on UPN here.