Bo has been wiped from the memories of the people who knew her. Bo's mother shows up at Kenzi's and wants to hire her to find the daughter that she can't remember. Through the investigation, Bo's friends come to realize they have also had their memories altered. Kenzi tricks the Collector into picking her so she can get a compass to restore their memories.
She uses it and everyone, including Bo's mother, grandfather, Vex, and Lauren remember Bo. And Bo wakes up.