A few days ago I shared Simon's scene one, as he enters a safehouse under guard. He has three more scenes, each with Norman Bird. (He doesn't interact with Roger Moore at all in this one.)
Simon being interrogated. They've overdone the sweat - but he isn't close to cracking, he's just under a hot lamp!
Simon turns off the lamp, opens the shades and lectures Spode on what the Chinese have done for him. His office is a palace compared to what Spode has.
Spode drives Craddock away, but the Saint sees him and runs him off the road.