Ivy and Bean decide they are going to be the best kids in town. They are going to be nice, they are going to be sweet, they're going to be kind and generous and pure of heart but as usual, they end up in trouble.
Finally! After months of begging their parents for ballet lessons, Ivy and Bean finally get what they wanted... well, not exactly. It turns out ballet lessons are actually about learning how to dance gracefully. If only the girls hadn't promised their parents to finish the entire ballet course!
It's the Science Fair! Some kids are making man-eating robots. Some kids are holding their breath for a very, very long time. Some kids are doing interesting things with vacuum cleaners. The theme, obviously, is global warming. But what should Ivy and Bean do? Something with explosions? Or ropes? Something with ice cubes?