Episodes
1. The Box
January 12, 1998
20 min
Mark and Lisa need to help their Uncle George (the current guardian) stop an ancient box from being opened. The box is a doorway to a slave world.
2. The First Key
January 19, 1998
20 min
George, Mark and Lisa begin the search for the three keys to the box. Lisa is awakened during the night by people who think her uncle has the first key.
3. The Watchers
January 26, 1998
20 min
Lisa and Mark are searching for the second key; when they find it, the Watchers try to kidnap them.
4. Kidnap
February 2, 1998
20 min
Having escaped from the attempted kidnap by the Watchers, the twins join up their Uncle George to locate the third and final key at the Roman baths.
5. The Crystal Connection
February 9, 1998
20 min
Now having all three keys, George and the twins persuade Professor Waters let them in to see the box.
6. The Trap
February 23, 1998
20 min
George breaks into the Janus Foundation to try to steal the box back, but then Mark and Lisa realise it is, in fact, a trap.
7. The Box is Opened
March 2, 1998
20 min
The gateway to the world of Heritron is now opened. George and the twins escape from the Janus Foundation, but are then betrayed.
8. Into the Box
March 9, 1998
20 min
Professor Waters retrieves the Box back from the Watchers' Headquarters, and George goes through the portal to lock the doorway into Heritron forever. The Catchers are waiting for him on the other side.
9. Betrayed
March 16, 1998
20 min
George is held against his will on Heritron. Anna tells Mark and Lisa that they must rescue him.