Kurt, Brian and Susan celebrate Simon's birthday by breaking into the school. After facing the wrath of Jenny, Simon seeks relationship advice from Susan.

Simon suffers under Jenny as Acting Head of Year when Arnie is found with cannabis; this results in a drugs talk and Simon upsetting new girlfriend, Maggie. Susan prepares to apply for the role of Head of Year herself.

Simon's personal life suffers when his dad invites his girlfriend, and her daughter, to move in with them; he seeks further advice from Susan regarding Maggie as she is still upset with him.

Simon is worried that his sex life is diminishing; He feels intimidated when he learns how adventurous Maggie was before she met him.

Susan suggests that Simon move in with Maggie; Two students disciplined by Jenny and Simon take their revenge by locking the two teachers in a closet, with revealing results.

Susan is under great pressure with the organisation of an open evening when she makes a massive decision about her marriage; she is then deeply upset that Simon lets her down and does not support her.