In their first big case, Whiz and Joey find themselves in the midst of an art world mystery--complete with masterpieces and forgeries. Nobody believes a crime has been committed, but Whiz is sure of it. Agents M and K, Jasper Springs' youngest, newest, and (soon to be) most famous detectives, embark upon a routine Saturday morning training mission only to happen upon a real crime when Whiz is certain that a known forgery, is itself a forgery. Follow along as the Tanner-Dent Detective Agency gets neck deep in their first big case! Will they live to solve the crime? They are not so sure.