The Second and Third Doctors disagree over operational tactics and philosophical approaches to confronting the antimatter entity, creating a professional rift that must be bridged to achieve victory

The President of the Time Lords moves decisively to break the Doctor’s defiance, ordering the retrieval of William Hartnell’s first incarnation as leverage. A Time Lord reports to the President …

While the Second Doctor argues with the Third about scanner malfunctions, Jo spots their past self trapped inside a pyramid-shaped force field on the TARDIS scanner. The First Doctor identifies …