To excel in science, Mr. Ratburn's class has to prove that they have P.A.N.T.S. - the ability to be patient, attentive, nosy, thoughtful, and systematic. And Arthur's certain he's got `em to ace his ant project... until the crawly creatures end up everywhere but in their ant-farm! Can Arthur's P.A.N.T.S. save his project - and save the ants from the exterminator?