About Degrassi: The Next Generation Season 4, Episode 7 :

Mr. Simpson appoints Jimmy as a last minute member of the Whack Your Brain team, along with Emma, Toby, and Rick. The four develop a relationship, and call an end to the animosity towards Rick. Jay, Spinner, and Alex aren't letting him go that easily, especially after Rick tagged their cars. Joey decides to sell his house, but when Craig calls his ex-girlfriend Sydney for help, Joey is reluctant to accept her offer.