The X-files 1x16 -

A disgraced doctor used progeria research to reverse Barnett's aging.

Episode Recap: "Young at Heart" (1x16) Agent Fox Mulder faces a ghost from his past. John Barnett, a criminal Mulder sent away years ago, is back. But there’s a catch: Barnett should be dead. Even stranger, he seems to be getting younger. 🔍 The Investigation The X-Files 1x16

Barnett is targeting the people who caught him—starting with Mulder. 👽 Why It Matters A disgraced doctor used progeria research to reverse