It is a nice sunny day in Springfield, and we see Homer and Marge Simpson taking their family for a stroll downtown. This is a popular activity among Springfieldians. Unlike the really, really big cities, Springfield is clean, peaceful and safe. Nothing exciting ever happens. Well, there was the uproar over 'The Itchy and Scratchy Show" a few months back, but that's over and everything seems to have settled back to normal. Wait! What's going on down there on the street? Something is happening in the Springfield Jewelers shop. It couldn't be ... There's a robbery! Sound an alarm! Call 911! Get a news crew down there! (This is really embarrassing, folks. Things like this don't happen everyday, honest.) Did you see that? The crook just ran into Homer Simpson. And there goes a huge diamond into the air. Irs going up ... up ... up ... and down ... down ... down, right into Maggie Simpson's mouth! Now the robbers grabbing Maggie and making a run for it!