A series of horrific mass killings leads Mulder to startling evidence of extraterrestrial life. Meanwhile, Scully finds herself forming a special bond with Cassandra Spender, who is an abductee too.
original airdate--March 1,1998 rating--20.21 million
music--theme song "X-Files" by Mark Snow"
Goofs:In season 2's "Ascension," Skyland Mountain was a private ski resort, yet here we are told it is a national park.

| Previous episode : | |
| 109 | Bad Blood |
| Next episode : | |
| 111 | The Red and the Black |
| Related to this story : | |
| 097 | Gethsemane |
| The X-Files, Season Four | |
| 098 | Redux |
| The X-Files, Season Five | |
| 099 | Redux II |
| The X-Files, Season Five | |
| 111 | The Red and the Black |
| The X-Files, Season Five | |
| 117 | The End |
| The X-Files, Season Five | |
| 128 | Two Fathers |
| The X-Files, Season Six | |
| 129 | One Son |
| The X-Files, Season Six | |
| 203 | Fight the Future |
| The X-Files, Movies | |