Before their with Scooby and the gang, optimistic and bright Daphne and whip smart and analytical Velma are both mystery-solving teens who are close friends but have met on the web - until now. Daphne has transferred with all the gadgets Ridge Valley High, to Velma's faculty, an institute. Although competition is fierce one of the students for a coveted internship at Bloom Innovative, Daphne and Velma dig beyond all the gadgets and technology to explore what is causing a number of their cleverest students in school to disappear - only to emerge in a zombie-fied state.