Ollie Stroy unearths a long forsaken mineshaft... and some long hibernating termites that haven't eaten since goodness-knows-when and are leveling out trees left and right, much to Felicia's pleasure! While Marsupilami likes to eat insects like termites, and the Native Palombians are burning fern leaves that termites find disgusting, what's protecting the treehouse that Hector and Aunt Diane live in? Turns out, while they enjoy eating the furniture, the termites hate to hurt the treehouse itself as it's covered with fast-growing vines. Also, they find marsu fur an improvement to the cold stone floor of the mineshafts, and Mars must offer a ride back there to the queen termite to end the plague before he gives himself and his family a stomach ache!