Debbie refuses to be ejected from Yonderland until she is given a glimpse into her newly discovered past. But on reaching her childhood home, she finds that her disappearance has left a lasting scar on her childhood nanny, which is now affecting the next generation. Meanwhile, Negatus makes a big impression at the Overlords' convention, leaving his hapless demons to fight over who's in charge in his absence. Back at home, Peter's obsession with ghosts reaches a head and Debbie starts to understand the impact that Yonderland is having on her home life.