Star Trek: Voyager
Heroes and Demons
S1 E12:
Harry Kim's innocent medieval role-playing holo-program turns dangerous when he and Chakotay disappear without a trace. In his own "native" environment, the holographic Doctor undertakes his first "away mission" to rescue them and survives fear, romance and heartbreak in unmasking an unlikely trespasser.
Starring
Marjorie Monaghan, Christopher Neame, Michael Keenan