When Professor Pizza's birthday present is dragged away by a strong ocean current, George volunteers to take an undersea adventure in a monkey-sized submarine to retrieve it. Double-Oh-Monkey takes on his most important case yet - to prevent Steve's well-intentioned (but always disastrous) "good luck present" from ruining Betsy's dance recital! Using his super spy skills and all five of his senses, George tracks down Steve and discovers...a bucket of wet paint?