The Rugrats are at Officer Dan's Pre-School Safety Town, a miniaturised city where safety rules are taught. While the Rugrats play on the grass, the older kids, including Angelica, race around in miniaturised play cars. When a ball goes out into the street, Chuckie catches it, but he jaywalks at an intersection. After getting caught by Officer Dan, he made Chuckie a "Safety Officer". However, Chuckie's new powers affected how the Rugrats play -- a little too much. (thetvdb.com)