Rico starts smoking marijuana, which causes him to act goofier than usual. Not only does he start acting incrediby silly during serious situations, but he starts to play basketball horribly. The rest of the team cover for him at practice, but things get worse when Rico promises to fix the brakes on Hammer's motorcycle. He gets high instead and forgets his promise, causing Hammer to have an accident on his bike and end up at the hospital. Meanwhile, Michael, Mary Beth, and Kristy take Auto Shop hoping to get an easy 'A.' However, things go wrong when they install a new sound system into the teacher's car and end up locking Kristy inside the trunk. (thetvdb.com)