Milton is offered a job by a flashy billionaire after creating a prize-winning pair of super-strong gloves, but Jack and Jerry question the businessman's motives. Meanwhile, Rudy and Sam visit a carnival, and Rudy is mistaken for a performer.
Jerry runs off a substitute teacher in his geometry class and the principal desperately searches for a replacement. Meanwhile, Rudy, Jack and Kim volunteer to babysit and quickly realize that the kid possesses expert skills in martial arts.
Milton attends a family reunion in Scotland and an ancient feud between his ancestors, the McKrupnicks and the McCrarys, is accidentally reignited. Meanwhile, Rudy and Jerry try to photograph the Loch Ness Monster.
Rudy recruits a prized female student to join the dojo, but Kim encourages her to pursue her passion for singing instead. Meanwhile, Milton and Joan host an intervention to stop Jerry's pathological lying.
Kim and Jack are given detention after Jerry's latest prank and wonder if being friends with him is more trouble than it's worth. Meanwhile, Milton and Rudy take a tour of a space camp and sneak into a restricted area where they find a space shuttle.