Grandfather asks Mike to save his caving business from going under. So Mike and his crew of dirty kids clean the stalagmites, make sure everyone can see creepy-crawlies up close, and provide glow-worms for their night lights. Then they take on Lazy Len and his giant black salamander… Mike’s out and about! Read how Mike Cool-as-You-Like takes part in Winter Games, travels to an active volcano, and saves the whales.