Ron is confronted by Smarty Mart owner Martin Smarty. He thinks he's fired, but the Mart mogul simply wants Ron to watch over Martin's insufferable young son, Arty. Meanwhile, Frugal Lucre manages to get out of prison and his first stop is Drakken's lair and, like a hangnail, it's hard to get rid of him.
Among this episode's many features: Rufus traveling through Smarty Mart pneumatic mail system, Shego in a silly-looking blonde wig, a waste of two very amusing supporting players (Lucre and the elder Smarty), the cousin Shawn-like Arty saving the day and the fact that Kim (the nominal star of the show) is barely in the episode (would that this happened in "Exchange"...).
Overall, this episode is a lot like ketchup between two slices of bread: it's something to eat, but it doesn't really fill you up and it's not very nourishing, either.