Pat is taking his last parcel to the school. Charlie Pringle is waiting eagerly for the parcel and as soon as he gets it inside the school, he opens it to reveal a microphone for the new radio station. He plugs the microphone into the control panel, gives it to Julian and he and Meera go outside to see if they can hear him. Julian talks into the microphone and Charlie and Meera can hear his voice coming through on the portable radio. They decide to all set up Radio Greendale by next Saturday.When Saturday arrives, Charlie runs round to Pat's house and invites him to the school for an interview on Radio Greendale.At the school, all the other children so eager and busy with getting the radio station ready that they end up leaving Charlie with nothing to do even though the whole idea of the project was his. So he wonders sadly off to go and do something else.As soon as Pat finishes his rounds, he quickly goes to the school for his interview. By now Pat has started to become a little bit nervous about what he has to do and as Bill introduces him, he accidentally leans on the controls and makes his voice sound funny on every radio all over Greendale. The children try to put it right flicking buttons at random, but only end up making it worse. They then realise that only Charlie will be able to help them as it was he who set up the radio station in the first place. Pat goes looking for Charlie in the van and finds him sitting sadly by the river. Pat tells Charlie that they need him and when they arrive back at the school, this statement turns out to be true. Quickly Charlie takes charge of the situation and makes sure everyone is doing their right jobs.Once everything is back on track, Bill gives a special interview with Charlie about making the radio station. Charlie tells all the listeners that the most important thing about running a successful radio station is working together as a team.