Star Trek: Voyager Season 1 Episode 12
Stardate: 48693.2
Harry Kim disappears from the holodeck during his holo-novel, “Beowulf.” According to the characters, he died at the hands of a mystical beast known as “Grendel”. When Chakotay and Tuvok also disappear, the Doctor is transferred to the holodeck to investigate.
Serie: Star Trek: Voyager
Episode Title: Heroes and Demons
Air Date: 1995-04-24