Class of 1999, Part 2: The Substitute was (surprise!) a sequel to 1989's Class of 1999--which was itself a sequel of 1982's Class of 1984. Once again, the setting is an embattled high school, where no mere mortal teacher dare walk the corridors. To keep the homicidally-inclined student body in line, a fleet of android teachers are put on the faculty. The robots went ballistic in Class of 1999, inspiring their students to new heights of mayhem. In the sequel, rogue android Sasha Michael, though trained to kill, attempts to try less drastic means to get through to the students. Michael is shadowed by a sinister stranger, who will not be satisfied unless the android does what he (it?) is ordered to do. Like its predecessor, Class of 1999, Part 2: The Substitute is a very hard "R." ~ Hal Erickson, Rovi