Sacrifice

Rachel and Criss are having problems to the point where Rachel is thinking of leaving Criss but when an old friend from Rachel and Zak's past bring memories, sacrifices both Rachel and her old friend have made through the years. Then someone from Rachel and her friend's past wants to destroy what they have. Can Rachel and her friend with help from Zak help each other to rid themselves of this person even it means digging up stuff from their past that they've kept buried.