It's MI6 vs the CIA in a race to contact all our secret agents. Trouble is, only one member on each team knows their true identities - sounds like poor governmental planning to me! Highlights include:

- Who had trains first?

- Clothes?

- Is it better to give or receive... clues?

- Mark thought it would be too 'codey'

- Just in case you didn't notice, Riley and Kimmy are American!