Kyle comes to school with his new "Dawson's Creek" Trapper Keeper, and wants to show it off, but Cartman upstages him with his highly sophisticated Trapper Keeper. They are visited by a cyborg from the future who calls himself Bill Cosby, and pretends to be a new fourth grade student. Eventually, he reveals his mission, which is to destroy Cartman's Trapper Keeper, thereby preventing a massive human vs. robot war in the future. Meanwhile, Mr. Garrison has been re-hired to teach Kindergarten, and there is a dispute beetween Ike and Fillmore as to who should be the class president.