Mark Dexter

The Doctor and Donna must uncover the truth behind the Nodes and the Data Ghost to uncover the library's secret.

As the shadows rise, the Doctor forges an alliance with the mysterious River Song.

In the nail-biting series finale, Crusoe and Friday defend themselves against Blackthorn and his men. Blackthorn sets out to retrieve the Crusoe bible from the tree house, for it contains the proof that Crusoe is the rightful heir of Blackthorn's fortune. Crusoe, shocked by the discovery of Blackthorn's true intentions, vows to get revenge.