Series 10 Rumours & Speculation

[Tea Lady]

So could the filming today be where we get to see Ruth and the cast all dressed up in evening clothes? Perhaps Ruth is under-cover (we were told that we were going to get more kick ass Ruth this series) and is working with the PM. The PM doesn't know she is Security Services and neither does the enemy because she is usually a desk officer. Anyway, she is attending an event with the PM at a foreign embassy. This could explain why she met Harry in secret on the sand bank.