The Girl from Tomorrow - Season 2 - Eps 4: The Time Gate
Alana and Nick find Silverthorn in his hide out testing the new TimeGate. It works, so they decide to go to the area where Silverthorns mansion was in 1990. Silverthorn goes back to 1990 and tells is mate Eddy that they are going in to the water business, shipping water from 1990 to 2500, because water is more precious than gold in 2500. When Silverthorn gets back to 2500, the Globecops are there waiting for him, he gets captured and they take him with the TimeGate back to Globcorp.
About The Girl from Tomorrow

Title: The Girl from Tomorrow
First Air Date: 1992-01-05
Last Air Date: 1993-09-29
Status: Ended
Rating: 7.1/10 (from 16 votes)
Language: EN
Seasons: 2
Total Episodes: 24
Network: Nine Network
Genres: Sci-Fi & Fantasy, Action & Adventure, Kids
Production Companies: Film Australia, Nine Network Australia
Synopsis
Alana, a girl from the year 3000, is kidnapped by Silverthorn, a criminal from the year 2500, and brought back in time to the year 1992. While in the past, Alana befriends Jenny, who helps her adapt to life in a time unfamiliar to her, and to find a way back to her own time.
Cast

Katharine Cullen
Alana

Melissa Marshall
Jenny Kelly

James Findlay
Petey Kelly

Andrew Clarke
James Rooney

Helen O'Connor
Irene Kelly

John Howard
Silverthorn

Miles Buchanan
Eddie