Erica tries to persuade her sister Samantha not to marry Josh, and Dr Tom sends her back in time to prevent the two from falling in love but discovers a secret that threatens her relationship with Samantha.

Erica seeks her sister Samantha's forgiveness as Yom Kippur approaches, but before she can expect forgiveness from Sam, Dr Tom sends her back in time to help understand more about her parents' divorce and learn to forgive them.