Friday the 13th: The Series - Season 3 - Eps 2: The Prophecies (2)
Micki and Ryan get word of Jack's injury at the end of the preceding episode. They travel to Marie-Mere with Johnny Ventura to investigate and try to recover Lucifer's Bible. Asteroth uses the Bible to take control of Ryan, who must then kill an innocent child to fulfill the final prophecy that signifies Satan's arrival upon Earth. Ultimately, Jack recovers and he, Micki and Johnny manage to thwart Asteroth. However, the ritual turns Ryan into a 10-year old permanently. He leaves with his mother, and Johnny takes his place.
About Friday the 13th: The Series

Title: Friday the 13th: The Series
First Air Date: 1987-10-03
Last Air Date: 1990-05-26
Status: Ended
Rating: 7.3/10 (from 221 votes)
Language: EN
Seasons: 4
Total Episodes: 72
Network: Syndication
Genres: Mystery, Sci-Fi & Fantasy, Drama
Production Companies: Unknown
Synopsis
Micki and Ryan with the help of their friend Jack try to recover cursed antiques so they can store them in safety inside the antique store's vault.
Cast

Louise Robey
Micki Foster

Chris Wiggins
Jack Marshak

John D. LeMay
Ryan Dallion