The Wasp is the eighth episode of Series 5.
Previous Episode: The Crystal of St Helena
Next Episode: Bully Elliot
Mrs King is overseeing the installation of the Worldwide Slang Prevention System (WASP) at St Hopes. The creation of leading educationalist Lady Blahga, the WASP units punish inappropriate language or slang by stinging the speaker, thereby improving both speech and behavior. St Hopes is the last in a series of school to have the system activated and Lady Blahga is visiting St Hopes to witness the switch on.
The same day, new deaf pupil Amber Bayes starts at St Hopes and Oscar is instantly drawn to her, much to Avril's annoyance. M.I.9 have picked up intel about a plan BBB (later revealed as Better Behaved Britain), designed to sabotage the WASP installation. The team discover that St Hopes is gradually being flooded by electrosonic power from an unknown source, that threatens to blow up St Hopes in two hours time, exactly when Lady Blahga will be there. Unsure who is behind the plan, Rose wonders if new girl Amber could be involved and Oscar eagerly agrees to keep a close watch on her.
Meanwhile, Rose attempts to find the source of the power surge and Carrie volunteers to guard Lady Blahga when she arrives. The system is activated and the pupils are horrified when it starts to administer stings and they are forced to modify their behavior. Oscar observes Amber examining one of the WASP units, but she easily deflects his questioning. However, when Rose discovers that the source of the power surge is Amber's old school, Oscar is forced to think twice.
- It is shown that M.I.25 also have a teenage spy project.
- Mrs King is shown the meaning of the phrase 'be careful what you wish for'.
- Lady Blahga is a reference to Lady Gaga.