iCarly - Season 2 Episode 17 iGo Nuclear

Carly has to do a project for green week, so she makes an electric scooter. But, it can only go for 4mph and it caught on fire, so she is given the weekend to make a new project. Spencer brings in a good-looking Science geek named Cal who helps her make a generator for iCarly, and Carly gets an A+. It is then revealed the generator was illegal and Cal was a criminal for buying Uranium, so she has to go on the Root-and-Berry Retreat to get extra credit.