Dark Skies - Season 1 - Eps 11: The Enemy Within
Following the deaths of both President Kennedy and his assassin, Bach realizes that the alien hive has planted a spy inside Majestic - and all the evidence points to his trusted aide, Jim Steele. However, Steele escapes into the Majestic complex after a failed attempt to eject the alien ganglion from his body. Meanwhile, Loengard and Sayers return to John's childhood home in California, where an uneasy reception from John's older brother Ray revives long-standing tensions between them.
About Dark Skies

Title: Dark Skies
First Air Date: 1996-09-21
Last Air Date: 1997-05-31
Status: Canceled
Rating: 7.3/10 (from 42 votes)
Language: EN
Seasons: 1
Total Episodes: 19
Network: NBC
Genres: Sci-Fi & Fantasy, Drama, Action & Adventure
Production Companies: Unknown
Synopsis
Dark Skies is an American UFO conspiracy theory-based sci-fi television series that aired from the 1996 to 1997 season for 18 episodes, plus a two-hour pilot episode. The success of The X-Files on Fox proved there was an audience for science fiction shows, resulting in NBC commissioning this proposed competitor following a pitch from producers Bryce Zabel and Brent Friedman. The series debuted September 21, 1996 on NBC, and was later rerun by the Sci-Fi Channel. Its tagline was "History as we know it is a lie."
Cast

Eric Close
John Loengard

Megan Ward
Kimberly Sayers

J. T. Walsh
Frank Bach

Jeri Ryan
Juliet Stuart

Tim Kelleher
Jim Steele

Conor O'Farrell
Phil Albano

Charley Lang
Dr. Halligan

James F. Kelly
Robert Kennedy

Gregory Harrison
Old John Loengard

Grant Mathis
Pyne