A robotic cat seems to have its wired crossed as it clamps its jaw onto Dex's calf. Lan and Maylu visit him in the hospital, but are greeted by a less than welcome reception. Meanwhile, Mr. Wily unleashes an electronic rampage of malfunctioning merchandise on DenTech City. Just as Dex is released from the hospital, he's attacked again--this time by a robotic dog! The cyber-pooch escapes, but leads Lan and Maylu on a pursuit that ends on a subway train. Unfortunately, Count Zap and ElecMan have launched a nasty net attack that causes the train to go careening out of control! It's up to Lan and MegaMan to stop the speeding bullet train before it becomes the ""disaster express!""
