Christmas morning, a young boy, Cody, accidentally shrinks his mother with his father's new invention, the shrink ray. His father becomes obsessed with his missing wife and Cody runs away. 13 years later, Cody who now runs a pressure washing service, receives a call that his father is in poor health. His father on his deathbed requests to see his wife one last time. Cody with nothing but an experimental growth serum and his trusty pressure washer, shrinks himself and begins a crazy journey that spans across valley's of shag carpet and descends into the deepest depths of his father's rancid mouth; Truly a test the likes of which he's never seen before. The pressure is on!