The White Guardian interrupts the Doctor's puttering around in the TARDIS to give him a quest: find all six segments of the Key To Time before... well, there's a deadline, but it's not entirely clear when it is. But sooner would be better. True to form, the White Guardian gives the Doctor some supernatural aid. Her name is Romana. She's a still-wet-behind-the-ears Time Lady, fresh out of the Time Lord Academy, where she acquitted herself rather better than the Doctor ever did. And she can out-smug the Doctor.