The Second Doctor meets the Third Doctor | The Three Doctors | Doctor Who | BBC

Gallifrey, the Time Lords homeworld, is under attack. Stuck on Earth in a strange energy field, Jo, the Doctor and Sergeant Benton are trapped inside the TARDIS unable to help. That is until the Time Lords decide to break the First Law of Time and let the Doctor help himself -- literally! Classic clip from The Three Doctors, first shown in 1973.

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