Tis Better to Have Loved and Flossed

Due to his crush on Mel, who is firmly engaged with loutish Dutch, Cam volunteers to take the lead in her place when Oz orders the team to 'test breaking in' at the home of an 'old woman'. It turns out a virtual, physically dangerous fortress belonging to a fox. It keeps getting worse: she turns out to be Cam's new dentist flame, a fake damsel in distress and Oz's dreaded ex, with plans of her own for both boys as well as sabotaging the job (imdb)