See Ya Later, Investigator

As Zoe, Dan, M., and their co-workers get ready to leave work for the day, a woman gets off the elevator on their floor and holds them hostage at gunpoint. Zoe recognizes her as the mother of a recently convicted murderer whom the team had helped convict. The woman reveals that somebody at M. Pearl McGuire Investigations contacted her claiming to have evidence that would prove her son was innocent and that she was supposed to bring $25,000 to buy the evidence. M. is determined to find the blackmailer and nobody is above suspicion! Meanwhile, M. is nominated for Businessperson of the Year and Dan's father comes for a visit while back at the Busiek house, Hannah has a friend over while Taylor works on a paper with a boy who has a bad reputation.