Hacker kidnaps Slider and then sends the Cybersquad on a fake rescue mission on the cybersite TickTockia-but it turns out to be a trick!
Matt, Inez, Jackie and Digit get trapped inside TickTockia while Hacker keeps Slider captive on the Grim Wreaker! The giant clock that serves as TickTockia's door will only stay open for a few hours...
The team must find their way out of TickTockia and rescue Slider-if he needs rescuing that is...