On the serene planet Deva Loka, an expeditionary force from Earth is dangerously out of control. It's not only the peaceful race of the Kinda who are at risk. A gentle stroll in the lush jungle leads the Doctor and Adric to an unexpected confrontation - and puts them at the mercy of a maniac. But it is Tegan, lulled to sleep by mysterious wind-chimes, who comes closest to a danger than threatens not only her sanity but the existence of the whole planet.

Materialising to avoid a head-on collision in space, the TARDIS becomes trapped on board an eerily deserted alien spacecraft. The Doctor transmats to Earth to solve the problem - yet when the TARDIS follows on, Tegan and Nyssa find that they have arrived five years too early. While the Doctor enjoys a reunion with Brigadier Lethbridge-Stewart in 1983, in 1977 his companions are confronted by a hideously deformed figure who claims to be the Doctor. Unsure whether or not this is their friend, Tegan and Nyssa must choose whether to answer his desperate pleas for help.

A group of palaeontologists have been savagely attacked while carrying out a study of fossilised dinosaur remains in an underground cave system on twenty-fifth century Earth. A party of troopers and Professor Kyle, the only survivor of the attack, are investigating the deaths of her colleagues when they discover the Doctor and his companions at the site of the massacre. The time-travellers are immediately suspected. In trying to establish their innocence and find out who - or what - was responsible for the killings, the Doctor is confronted by an old enemy.

Jon Culshaw reads this iconic novelisation of a Fourth Doctor TV adventure, newly restored and extended by the author. The Doctor and his companions are trapped in E-Space, struggling to find their way back into their own universe. Arriving at an intersection, the TARDIS is invaded by a refugee of the enslaved Tharil race. With K9 damaged by the Time Winds, the Doctor, Romana and Adric explore the strange white eternity of the Gateway, where past, present and future cross over.

Matthew Waterhouse reads this classic novelisation of a Fourth Doctor TV adventure.The Doctor, Romana and K9 are heading for Gallifrey when they temporarily lose control of the TARDIS. The significance of this event is only revealed when they land, not on Gallifrey but on Alzarius. The planet's legendary Mistfall is approaching, a time when giant scaly creatures emerge from the swamps and go on the rampage, leaving a trail of death and destruction in their wake.