After copying the formulas of the two agent down, Tama begins work on making them. Jade again surprises Jo, who gives her the key to Nicholas' room which allows her to once agin rescue him. Louisa, Jo and Nicholas swap the drum of cooking oil for the toxic waste. Campbell chases them and threatens to open the drum with the poision. Meanwhile the Russians have come to collect Nicholas and take him back. Sir Ivor makes excuses and asks them to be patient and to come and enjoy the ball. (thetvdb.com)