The girls try to pay tribute to Alison's memory, but they are still faced with unresolved issues. Toby, Jenna's stepbrother, has come back to school. Aria has an unpleasant encounter with her father's former mistress. Spencer faces a vengeful Melissa after her kiss with Wren. Hanna tries to get Sean to forget the 'old Hanna'. Toby and Ben (Emily's boyfriend) have a fight and Emily breaks up with him. Emily and Maya get closer, since Ben is no longer in the picture and Spencer copies her sister's essay and claims it as her own. The girls realize that leaving the past behind is much harder than they first thought. ' A' ending: 'A' listens to jazz music as they print copies of the pictures of Emily and Maya in the Photo Booth.