Alana is a 14 year old living in the year 3000. Her guardian Tulista is the first person chosen to travel through time to investigate the year 2500, an era that went horribly wrong, to see exactly what happened. Alana, not wanting her guardian harmed, runs to the lab, trying her best to stop the experiment from proceeding.

Waking up the next day in the new time Alana is dazed and confused, trying to return to the capsule only to be stopped by a security guard.

An officer takes Jenny home after Alana once again takes off. She tries to tell her mother about Alana, but she doesn't believe her about Alana being a time-traveller. Sneaking out later that night Jenny and Alana re-group and Jenny takes Alana home with her to safety.

Irene makes Alana enroll in school causing a new set of problems for both girls to deal with. After eating an eclair for the first time (and then Jenny's as well) Alana makes herself sick in science class. Meanwhile Petey has been into Alana's things and taken off with her transducer.

Chasing the limo on her bike Jenny finally reaches Alana when the car stops and the two escape together from Silverthorne. Back home and things are no better as Mr Rooney starts asking questions about Alana.

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.

The girls stake-out Silverthorne but on the first day Jenny loses him. It's Petey who comes up with a new idea while they are putting junk into their shed. So the plan is set and this time when Silverthorne drives off, attached to the back of his car is a dripping can of paint.

Petey manages to create a distraction allowing the girls to once again escape from Silverthorn. Back home, Jenny's mother Irene is getting set to go out with...you guessed it...Mr James Rooney. While the girls go about telling Irene about the capsule, James turns up and she decides to tell him to truth about Alana. James has the idea to do a news story on the show 'Newsprobe'.

The news story back fires when Alana goes to do a second interview and the transducer doesn't work. The Children's Welfare department turns up to investigate, finding no record of Alana's birth. With no proof of family ties to the Kellys, they immediately take custody of her.

Alana manages to heal Silverthorn's brain tumour and he promises to send her home. Only instead he creates a force field around the capsule so Alana can't get to it, making it impossible for her to get home.

Jenny keeps replaying the message Alana left for her on PJ. Both Irene and Jenny get James to take the day off teaching in order to help them find and rescue Alana.

Finally Alana can go home. The capsule is in the garage and everyone is saying their goodbyes. And then Silverthorn turns up and Irene tries to stall him as best as possible.