Oh, something else I forgot to tell you. I think I poisoned Nero.
Fresh off a literal cliffhanger of an ending in “The Rescue,” the tipping TARDIS lands on its side…and no one seems to care. After our time travellers flail about on the TARDIS, we find them lounging in ancient Rome, in a villa they’ve somehow managed to take over in its owner’s absence. They themselves have become “The Romans” (Story Production Code M).
Gradually it becomes obvious that a month has passed since the Doctor’s poor landing, and having for once not landed in a terrible situation that requires immediate action, everyone decides to take a holiday, leaving the TARDIS stuck on its side in a ditch. While the jump from the crashed TARDIS to our Roman revelers seems a bit jarring, the discontinuity allows for Vicki to have been integrated into the daily routine behind the scenes. She is at ease with everyone, particularly the Doctor, with whom she shares a blend of nonchalant curiosity and optimism. Throughout the story, Vicki will follow the Doctor around, accepting orders yet not allowing the Doctor to take himself too seriously. Where Susan had a certain reverence for her grandfather, Vicki respects the Doctor but retains a very real independent streak.
Still, we can’t have a Doctor Who story without something happening beyond character development (the thin plot of “The Rescue” notwithstanding), so the travellers split up (of course) and intrigues abound. All roads, indeed, lead to Rome.