To raise much-needed cash, Dr. Venture holds a yard sale for his father's old, unwanted super-science equipment and inventions. Brock and other agents from the Office of Secret Intelligence maintain security as many of Venture's arch-nemeses attend, but The Monarch has other plans.

The Monarch finds himself on trial for a murder, but it soon becomes clear that the "Guild of Calamitous Intent" may be behind the whole thing.