The Ghost Hunter DVD 2000 Series 1,2,3. £18

Series One

The main action takes place in Roddy and Tessa's village and school where the Ghost Hunter is active. One of the Ghost Hunter's chief abilities is her sense of smell. She can sniff out a ghost effortlessly. But Roddy and Tessa do not know who the Ghost Hunter is. They set about trying to discover this so that they can protect William. One of their ruses is to put garlic all round Roddy's bedroom, where the ghost is hiding, as the smell is said to keep ghosts and evil away. Eventually, the children realise that the Ghost Hunter is Mrs Croker, but only when she arrives at Roddy's house with her "ghost immobilising vapour" (GIV) with which she tries to freeze William, shrink him and put him in a bottle. Thanks to Roddy's quick wittedness, William escapes and the police almost arrest Mrs Croker but she escapes. Mrs Croker is also, and always, on the look out for other ghosts and has a whole collection of bottled ghosts that is discovered by Roddy, William and Tessa when the two boys save Tessa after she is kidnapped by De Sniff and left tied up and gagged in a secret hideout while Mrs Croker and De Sniff go back to the house to look for William. When she learns that there is to be an AGM (Annual Ghost Meeting) at Chillwood Castle, she and her side-kick DeSniff set up a powerful plan to bottle dozens of ghosts. Her plan is to use ghost-energy for her own wicked purposes, but the plan fails when she attacks the ghosts during a unique ghost celebration that allows them to assume their human bodies once again. Thanks to Roddy, Tessa and William, Mrs Croker falls from the battlements of Chillwood Castle, and is believed to have been killed. De Sniff escapes.

Series Two

The tone changes and becomes more sinister. DeSniff has discovered Mrs Croker is not dead. She has survived her fall from the castle and returns to work in a strange old mansion, called Deadlock Hall. Here, her demonic energy kicks into action again and she creates a machine called a "specktrika" which pulls ghosts towards it like a magnet. With this she intends to catch enough ghosts to power her "time travelling machine." But by now the eccentric and foolish DeSniff has tasted power and he wants to time travel too. The Ghost Hunter manages to create a time hole in the fabric of the universe and both DeSniff and Croker are carried back to Victorian times.

Series Three

Mrs. Croker teams up with a Victorian scientist, Mr Darcy. They develop an elaborate plan together to catch masses of ghosts. Mrs Croker wants to use the ghost-energy so that she can become immortal. Returning to the modern era, 25 years have now passed since Roddy and Tessa last defeated Croker, and Roddy is a doctor with two children who are called Leo and Bex. Roddy is nervous when they question him about his old stories of the Ghost Hunter and William. William meets Roddy again, but Roddy can no longer see him, due to the loss of his second sight.

Using the time portal, Croker and Darcy make millions of pounds, and plan to buy Roddy's former school, and set up "THE GHOST SCHOOL", which is now derelict and abandoned, apart from the ghosts who reside there. The year in the future is 2027. Bex and Leo, having gone through the time portal to 1890, help a Victorian baby (Albert Povey) who is seriously ill, by bringing him back to 2027. Their father, Dr Roddy, gives the baby antibiotics which saves its life, but by doing so, changes the course of history. Albert grows up to be a successful doctor and in the future, is widely celebrated. Meanwhile, an angry DeSniff thwarts Croker's plans by withdrawing all of the money Croker and Darcy have saved. A final showdown between the pair sees DeSniff donating all of the money to the charity which has been set up and is celebrating Albert Povey Day.

Bex and Leo, back in Victorian times, where they have returned the baby Albert to its parents, get back to the Time Portal, only to find it is closed. William and his friends risk sacrificing themselves in order to re-open the portal. Bex and Leo return to the future and in doing so, the time portal closes, perhaps forever. Arriving at the place where the derelict school and The Ghost School had once stood, they see it is now a new hospital, dedicated to Albert Povey. Roddy comes out and tells them they are just in time to see a new ward opening up in honour of the man who donated so much to help... the DeSniff Ward. Back in Victorian times, two of the ghosts have emerged unscathed from the time machine, but William is nowhere to be seen. Roddy is seen in his office, where William makes his final goodbyes to him. Roddy is delighted he had the chance to see his friend one last time.