2x22 - Ghost Whisperer

Melinda visits the Mayor of Grandview and asks him to cancel the memorial dedication they are holding. She speaks to the ghost of a mail person and is looking for a young girl named Kristen. Later, Melinda and Professor Payne search for missing children after their Nanny says that they left with a man named Gabriel. Meanwhile, a mysterious man tries to get Melinda to stop helping the good guys.