Calvin and Marty face permit delays at Westside Fuse Box, pushing back the grand opening, while Malcolm's booming writing career sparks an urgent search for a new nanny. Over at the Johnson house, Dave is still struggling to bounce back after being fired.

Malcolm's home renovation takes an unexpected turn when Calvin's cousin Crutch shows up uninvited to fix his floors. Meanwhile, Dave's attempts to help around the house and support Grover's booming T-shirt business lead to more stress than he bargained for.