Takes place before PP. Danielle is back in Amity Park and has a file that could change everything for the better or worse. Valerie got past her grudge. Tuck and Val are dating. Sam and Danny are finally realizing their feelings for each other. What happens when you mix this with news from Clockwork that could cause a great stir of trouble?

Casper High School is adding a new class to the curriculum this Winter. Ghost 101, short for 'To Catch a Ghost 101.' Danny, Sam, Tucker and Valerie don't sign up for the class, but when they find their names on the roster for the new class when they get their schedules they are forced to take it. Maddie and Jack are the Teachers. What is Team Phantom going to do? Be very careful.