During the robot creation contest, Zack found out he was looking at something else when he put on a special kind of glasses that Spence was going to use for his robot. Spence's challenge was to win the contest with the robot's ability to ""burp"" the alphabet, and a big contender was Gwen, who made her robot play the violin. Zack discovered that someone was sabotaging Spence's robot. Zack had to wear the ridiculous glasses all day to see if the sabotager strikes again. Spence decides to stay beside the closet, which hold his robot to catch whoever is damaging his robot. The trio believed that Zack was seeing through Gwen's eyes with the glasses, and he was seeing Gwen destroying the robot. So is Gwen the dismantler? (thetvdb.com)