Frank and Joe are excited to go camping with their friends in Bayport State Park for the annual "Fun With Camping" event. They are ready for hiking, bonfires, and s'mores--and especially for the tent decorating competition, which the boys are determined to win.

But just a few nights into the trip, decorations start to go missing. First Frank and Joe hear strange noises outside their tent. Then they see a set of unique footprints at the campsite.

It seems like someone--or something--is out to sabotage the decorating contest. Can Joe and Frank figure out who the campsite culprit could be?