A bored Stan tries to join Steve and Roger in their detective agency while they try to solve a case involving a young man's inheritance. Roger has Teddy Bonkers validate the young man's parking and process Stan's application and later describes his night out at Fudge!. Stan ruins the fun by being extremely incompetent when he claims that Teddy told him to give Roger coffee instead of his booze and fouls up a lead in their case. Roger demands that Steve fire Stan, but Steve cannot bring himself to do it and ends up lying to Roger by faking the firing.
Things take a turn for the worse when they receive a finger in the mail threatening more harm to Stan unless they turn over the key. Puzzled by the interest shown in a fired minor employee, Steve confesses that he faked the firing. They return to their previous lead and without Stan, convince the clerk after Roger scans his butt in order to buy something to reveal the key fits a locker at the train station. At the station, they find the locker and discover a satchel inside that glows when they open it.
They meet at an abandoned bank where the ransom note said Stan would be and send in the key. They find Stan inside tied up and he reveals that the criminal is Teddy Bonkers. Stan lays out an elaborate plan hatched by Teddy to get Stan fired for replacing him as the next detective and then steal the case. As Roger accepts the story, Steve finally grows enough backbone to confront Roger on how stupid the entire plot involving Bonkers is and it turns out that Stan faked his kidnapping in order to make Steve finally become assertive and submitted a fish stick for his finger. Roger refuses to continue playing his role without Bonkers.