Jimmy Jimson is a dreamy and well-meaning kid, but sometimes he's a bit clueless. Like most of us, he overthinks things, worries too much and goes off on the wrong tangent. When strange green alien things start appearing in his playground, he is not impressed. It all has something to do with the older kids, but he's not sure what's going on. His investigations and his curiosity open up a new world he wants to be part of. He can't wait 'til next term when he can join the older kids and be part of it too!