34. Twin Dilemma 21.21-21.24
The subplot of the abducted Romulus and Remus is dull as is the combination owl bug alien who pulls the strings. Embolism green rays of death are of mild interest, though things do not really pick until the last part of the four when they discover the desperate and deadly plot behind the plot. But this serial is worth watching to see just how insufferable the Doctor could possibly be. Hopelessly arrogant, cruel, and disgustingly rude or "egocentric, willful, and mad," in the words of the alien du jour, this Doctor starts off on a terrible foot. Not only does he nearly kill his companion Peri upon first waking, he vehemently denies any wrongdoing, insisting she imagined it happening. But sparks of his better nature flicker through, when Peri is in danger he comes ultimately to her defence, and during the showdown between his former teacher and the alien threat, the Doctor becomes positively emotional, which lets us know he may be alright eventually after all.
33. Angels Take Manhattan 7.5
This story principally important for being the last to feature Amy and Rory, and being the breaking point of the Doctor's long-time battle against the Weeping Angels, terrorizing, neck-snapping, living statues, who sometimes send victims backward through time involuntarily. On a less important note damage done by the Angels and the ensuing battle bars the Doctor from returning to large chunks of time in New York, perhaps forever capping off a string of adventures in and around NYC. It is also a particularly romantic and emotional story featuring touching moments with both the Pond-Williams pair and between the Doctor and River Song.