Earth, the near future. The Master - another renegade Time Lord and the Doctor's sworn enemy - arrives and allies himself with the Nestene Consciousness in an attempt to conquer the planet.

The Doctor investigates Rossini's International Circus. The Master, meanwhile, has assumed control at the plastics factory and is manufacturing new lines of living plastics.

Earth, the near future. The Master - another renegade Time Lord and the Doctor's sworn enemy - arrives and allies himself with the Nestene Consciousness in an attempt to conquer the planet. But how can plastic flowers be an invasion weapon... ?

The Doctor catches up with his old enemy, the Master. Can anyone stop the Nestene Consciousness?

Earth, the near future. The Doctor visits Stangmoor Prison to see the Keller Machine, a revolutionary new type of rehabilitation aid, in action - but finds his fellow observers literally dying of fear. Who is responsible for creating the Machine? And how does it connect to the peace conference happening in London?

Earth, the near future. The Doctor visits Stangmoor Prison to see the Keller Machine, a revolutionary new type of rehabilitation aid, in action - but finds his fellow observers literally dying of fear. Who is responsible for creating the Machine? And how does it connect to the peace conference happening in London?

Earth, the near future. The Doctor visits Stangmoor Prison to see the Keller Machine, a revolutionary new type of rehabilitation aid, in action - but finds his fellow observers literally dying of fear. Who is responsible for creating the Machine? And how does it connect to the peace conference happening in London?

Earth, the near future. The Doctor visits Stangmoor Prison to see the Keller Machine, a revolutionary new type of rehabilitation aid, in action - but finds his fellow observers literally dying of fear. Who is responsible for creating the Machine? And how does it connect to the peace conference happening in London?

Earth, the near future. The Doctor visits Stangmoor Prison to see the Keller Machine, a revolutionary new type of rehabilitation aid, in action - but finds his fellow observers literally dying of fear. Who is responsible for creating the Machine? And how does it connect to the peace conference happening in London?

Earth, the near future. The Doctor visits Stangmoor Prison to see the Keller Machine, a revolutionary new type of rehabilitation aid, in action - but finds his fellow observers literally dying of fear. Who is responsible for creating the Machine? And how does it connect to the peace conference happening in London?

Earth, the near future. Axos, a living spacecraft, lands and offers Earth a new energy source - Axonite. But what is Axos's real agenda?

Earth, the near future. Axos, a living spacecraft, lands and offers Earth a new energy source - Axonite. But what is Axos's real agenda?

Earth, the near future. Axos, a living spacecraft, lands and offers Earth a new energy source - Axonite. But what is Axos's real agenda?

Earth, the near future. Axos, a living spacecraft, lands and offers Earth a new energy source - Axonite. But what is Axos's real agenda?

The planet Uxarius, in the year 2471. The Time Lords temporarily reactivate the TARDIS to allow the Doctor and Jo to travel here. They find colonists from Earth struggling to survive on a desolate world, with the rapacious miners of IMC attempting to drive them away. But what happened to Uxarius' original inhabitants?

The planet Uxarius, in the year 2471. The Time Lords temporarily reactivate the TARDIS to allow the Doctor and Jo to travel here. They find colonists from Earth struggling to survive on a desolate world, with the rapacious miners of IMC attempting to drive them away. But what happened to Uxarius' original inhabitants?

The planet Uxarius, in the year 2471. The Time Lords temporarily reactivate the TARDIS to allow the Doctor and Jo to travel here. They find colonists from Earth struggling to survive on a desolate world, with the rapacious miners of IMC attempting to drive them away. But what happened to Uxarius' original inhabitants?

The planet Uxarius, in the year 2471. The Time Lords temporarily reactivate the TARDIS to allow the Doctor and Jo to travel here. They find colonists from Earth struggling to survive on a desolate world, with the rapacious miners of IMC attempting to drive them away. But what happened to Uxarius' original inhabitants?

The planet Uxarius, in the year 2471. The Time Lords temporarily reactivate the TARDIS to allow the Doctor and Jo to travel here. They find colonists from Earth struggling to survive on a desolate world, with the rapacious miners of IMC attempting to drive them away. But what happened to Uxarius' original inhabitants?

The planet Uxarius, in the year 2471. The Time Lords temporarily reactivate the TARDIS to allow the Doctor and Jo to travel here. They find colonists from Earth struggling to survive on a desolate world, with the rapacious miners of IMC attempting to drive them away. But what happened to Uxarius' original inhabitants?

Earth, the near future. When an archaological dig at the village of Devil's End goes disastrously wrong, an ancient power begins to revive. Can even the Doctor withstand the power of the Daemons? And just what is the local vicar up to in his spare time?

Earth, the near future. When an archaological dig at the village of Devil's End goes disastrously wrong, an ancient power begins to revive. Can even the Doctor withstand the power of the Daemons? And just what is the local vicar up to in his spare time?

Earth, the near future. When an archaological dig at the village of Devil's End goes disastrously wrong, an ancient power begins to revive. Can even the Doctor withstand the power of the Daemons? And just what is the local vicar up to in his spare time?

Earth, the near future. When an archaological dig at the village of Devil's End goes disastrously wrong, an ancient power begins to revive. Can even the Doctor withstand the power of the Daemons? And just what is the local vicar up to in his spare time?

Earth, the near future. When an archaological dig at the village of Devil's End goes disastrously wrong, an ancient power begins to revive. Can even the Doctor withstand the power of the Daemons? And just what is the local vicar up to in his spare time?