A natural-born explorer, Leo loves to make maps and experiment with new ways of getting around the schoolyard. But explorers sometimes get sidetracked, which can lead to getting in trouble. When Leo's teacher, Mr. Chang, announces he'll be giving out an award for responsibility, Leo is determined to redeem himself. The upcoming class field trip to the woods seems like the perfect opportunity. He'll get to use his handy compass watch and show Mr. Chang he can be extra-responsible But when two of Leo's classmates wander out of bounds, Leo is faced with a tough decision.