Alana, a girl from the year 3000, accidentally ends up in the year 1990, after an experiment with a time machine has gone wrong. Jenny Kelly, a girl, who lives in 1990, befriends her and gives the bewildered Alana a place to hide.
Alana finds herself completely lost in a world she doesn't know. In order to survive and get back to her time capsule, she runs into several dangerous situations and meets a girl named Jenny Kelly.
Silverthorn has kidnapped Alana. Jenny tries to find a way to save her. Silverthorn wants to team up with Alana to control the world. Will she be able to resist him?
Once again in Mr Rooney's class the girls draw a little attention as they hack into the police database with the help of PJ to find out who the car is registered to.