The final episode produced for Columbo‘s original run, “The Conspirators” has Irish poet Joe Devlin (Clive Revill) brokering an arms deal to send an RV-load (literally!) of machine guns to the IRA. When he shoots the dealer over a perceived betrayal, he not only has to cover up the crime, but also figure how to get his hands on those guns. Columbo is in a race against time, drinking pints and shots and slinging limericks, to prove Devlin did it and prevent the weapons from leaving Los Angeles. Steven Goss (Columbo Interiors, Robophono) joins Jon and RJ to talk about an odd end to the original series.