Once again, we have a few people (4 or 5, I think) trapped in a giant cube with no idea how they got there. They work together to find a way out, but some of the rooms are rigged with various lethal traps. What's different this time is we see two guys, low-level techs, observing the people in the cube. This is their job. One of them, your typical nerd-character (genius with numbers, and chess, and also likes to draw), falls for the attractive female lead character, so he dares to defy the system and try to help her. We discover that these people have all been mind-wiped and they were all supposedly sentenced to death, but have chosen to brave the Cube for a chance to live. The purpose of the Cube is to test people on various physical and mental parameters (i.e., it really is just a cruel experiment). The technology is clearly way beyond 20th Century, with mindwiping and bio-chips, and so on. Not surprisingly, at least one person, the female lead, is innocent, and has been kidnapped and dropped into the Cube because she's a political dissident. There's more to the movie, but it's more-or-less your basic Cube storyline: how do they escape, who survives, what happens afterwards, etc.