Sophie feels haunted by her boyfriend's ex. Sid and Hannah hash out an old argument. Charlie and Ellen host a dinner party.

Jesse and Sid introduce the gang to an old college ritual. They all spend the next 48 hours attempting to complete various tasks in order to achieve a group “rewardishment.”

Val brings Sophie to a work event so they can party all night with the rich and famous. Jesse wants to introduce the friends to a new girl he’s seeing, forcing them to spring into action and invoke the “Welcome Protocol”.