Classic Doctor Who: Power of the Daleks

Ben and Polly suspect that the 'new' Doctor is really an imposter. The TARDIS lands on the planet Vulcan where a murder has been committed.

Posing as an Examiner from Earth, the Doctor warns the scientist Lesterson of the dire consequences of reactivating the dormant Daleks.

Polly is taken prisoner by the rebels who intend to use the Daleks to take control of the colony. The Doctor discovers that all three Daleks have now been reactivated.

Lesterson is driven insane when he discovers that the Daleks are reproducing themselves and are preparing to seize control of the colony.

Bragen leads the rebellion and takes control of the colony, killing Governor Hensell. But the Daleks are also ready to make their final move.

As battle rages between the rebels and the loyal colonists, the Daleks begin their attack. The only chance of survival for the colony rests with the Doctor.