"Join Nancy Drew, along with Bess and George, as they search for missing student filmmakers and discover the deadly secret behind the local urban myth know as "The Demon of River Heights""--P.  of cover.
Nancy must protect a high efficiency engine from evil forces as it is transported across country by train to millionaire Ralph Credo's research facility.
Mavis, daughter of Dracula, is ready to sink her fangs into more responsibilty at the Hotel Transylvania! But when Wanda and Wayne recruit Mavis to watch their rambunctious wolf pps for the night, the situation soon turn...
Someone is determined that Nancy loose the race to win a government contract to mass-produce a new fuel-efficient car.