Attack Briefing For Agents Frank And Joe Hardy. MISSION: To discover the criminal responsible for forging versions of valuable original comic book art. LOCATION: A huge comics convention in San Francisco, CA. POTENTIAL VICTIMS: A major comic book artist stands to lose a lot of money, but thousands of fans at the convention could lose their lives if the culprit gets desperate. SUSPECTS: Rival artists, obsessed fans, and even a co-owner of the local art gallery are all possibilities.