In "To Catch a Duck", Duke pretended to join up with Falcone; due to Falcone once having been part of his gang, to learn what he was up to, and found out that Falcone was working for the Saurians, trying to help them steal the world's largest jewels for a new weapon. Duke tried to stop him but failed as Falcone got him arrested. Falcone got the gem, but not long after that, his ship blew up and sent him down into a moat. There, the guards of Big Ben found him. Falcone is currently sitting in London's jail cell for stealing a jewel from them.