Horses 1x5 | Slow

Cartwright uses a decoy to sneak into Diana Taverner's office.

The titular "Fiasco" refers to a botched MI5 training exercise at Stansted that tried to hide. Slow Horses 1x5

"You're f***ing useless... Working with you has been the lowest point in a disappointing career". Cartwright uses a decoy to sneak into Diana