A new full cast adventure for the Eighth Doctor, starring Paul McGann, Nicola Walker, Hattie Morahan, and Mark Bonnar. When one of Gallifrey's most notorious criminals attempts to escape from prison, Cardinal Padrac turns for help to the Time Lord who put him there in the first place. Then, a London Museum holds the key to many secrets from the past. But some secrets are so deadly they should remain locked away. With a mysterious plague sweeping through Florence, a rampaging alien behemoth comes between the Doctor and the answers he seeks. Finally, Long buried animosities come boiling to the surface on an ancient and powerful satellite, in a final confrontation that could have unimaginable consequences.