The Girl from Tomorrow Part II: Tomorrow's End, a time portal called The Time Gate is used by a terrorist from the year 2500 to take water from 1990 to his own time. The science fiction TV series Torchwood centres most on the effects of a rift in both time and space, through which humans, aliens and devices emerge. In the science fiction TV series Primeval, a group of scientists investigate time anomalies, through which creatures travel. 11.22.63 features a school teacher being sent by a terminally-ill friend to go back to the 1960s (via a time portal in a diner closet) to prevent the assassination of John F. Kennedy, adapted from the novel by Stephen King. Computer games Time portals are a common element in computer games, most notably the TimeSplitters series, which involves characters utilizing time portals to move through time and is intrinsic to the plotlines in the second and third installments of the series, where a character called Sergeant Cortez moves through time to complete his objective by using these portals. Time portals are also the original mode of time travel in the SNES game Chrono Trigger. There are quite a few of them found throughout the game and seem to be activated by the use of a "key" made by Lucca. The original portal found in the game actually occurs due to an accident that takes place at the beginning of the game involving Marle's pendant and a teleporting experiment. Most time portals are generated via a handheld item such as a watch, or a glove. However, some time portals are such things as mirrors, or other items such as a key in the Harry Potter series. Literal portals, which are not items that you would use on a day-to-day basis, are also common. "Time rips" and time travel in general are the central theme and plot engine in Space Quest IV: Roger Wilco and the Time Rippers as the titular character, Roger Wilco, is sent into the future by means of a time rip in order to save his home planet, which had already experienced a series of crises in the future time period to which he is initially sent. Throughout the game, Roger Wilco travels through different time periods in the future to complete various goals by using time-traveling vehicles called "time pods." In the Final Fantasy XI expansion Wings of the Goddess,