Velma is accused of killing a classmate and has 24 hours to find the real murderer.

Desperate to access her missing mum's case file, Velma strikes a deal with her former BFF, Daphne, who may just have some secrets of her own; a sober Norville finds himself in with the wrong crowd; Fred claims innocence for a series of crimes.

When Principal Rogers enrols all the female students in a self-defense class, Velma and Daphne must work out their complicated relationship on the mat; meanwhile, Norville vows to get answers from Fred, by any means necessary.

With Crystal Cove High's hottest girls under attack, Velma questions her feminist values, while Fred analyses his own views on women; after seeking Daphne's help, Norville finds himself embroilled in a new mystery.

A sudden city-wide curfew on Crystal Cove forces Velma to stay the night with Fred and the band geeks; Daphne makes a startling discovery.

Velma vows to resolve her daddy issues; Norville rebels against his father; Fred fights against his family's ways; Daphnes learns a shocking truth.