Always setting his sights high, Grandpa is busy planning the first ever Moon Games! Athletes from all over the world will travel to the lunar surface to compete. And of course, Grandpa’s four grandkids will be going too. Readers travel along and learn how events like the high jump, pole vault, shot put, and javelin might work in the Moon’s lower gravity.When some the athletes forget to treat the Moon with respect and toss food wrappers and empty containers everywhere, Ivy has a mysterious encounter. The four grandkids lead the way in making the Moon trash-free, and soon everyone pitches in. The grandkids’ trip to our nearest neighbor in the sky teaches readers important lessons about working back home to help keep Earth a beautiful place for everyone.