This episode is sort of a mix between the episode "True Believers" from Snoops, and the episode "Millennium" from The X-Files. Both episodes aired on November 28th, 1999.
In the episode of Snoops Glenn Hall Inc. kidnaps a girl from a cult at the insistence of her father, only he isn't her father but an actor posing as her father.
In the episode of The X-Files the Millennium group wants to destroy the world to bring forth the Four Horsemen of the Apocalypse.
Ross Malinger, the actor who played Jason, is uncredited because his parents didn't want his name to be associated with the show. You may recognize him as Tom Hanks' son in "Sleepless In Seattle".