SHADA The Doctor and Romana discover that the ruthless Skagra is eager to acquire an ancient book possessed by retired Time Lord Professor Chronotis. DIMENSIONS IN TIME The Rani sets out to trap all of the Doctor's incarnations in the East End of London. There, the Doctors and their companions are hounded by the Rani's Menagerie of monsters. THE CURSE OF FATAL DEATH On the planet Tersurus, the Doctor and the Master compete to outwit each other, but the Doctor is finally out-manoeuvred and is taken prisoner by the Daleks. TIME CRASH The Tenth Doctor's TARDIS collides with the Fifth Doctor's. The crash instigates the creation of a black hole, and the Doctors must work together to avoid catastrophe.