Sheldon and Missy both run away from home; Mary gets upsetting news about George Sr.
It's Halloween and the office plans a 'Haunted House' for the children in the community. Michael falls into a koi pond at an important business meeting. Meanwhile, Pam and Andy go cold calling to drum up more sales.
Cal is contacted by a pharmaceutical company when the formula of a potentially deadly drug is stolen. Is it an inside job or are there twists in the tale?