Elliot Spivey discovers he has the ability to make anything he says come true, no matter how outlandish. At first he enjoys the perks, beating his sister at chess, becoming a star basketball player, and moving into a mansion. But things take a dark turn when his lies trap him underground with a mysterious machine. This machine tries to convince Elliot to unleash its power and set it free. Meanwhile, Elliot's sister Lauren grows suspicious of her brother's newfound talents. When Elliot goes missing, Lauren teams up with miniature soldiers from the underground kingdom of TupilliL to find him before he wreaks havoc on both worlds. As the machine manipulates Elliot in his dreams, Lauren races to reach him, unsure if she can trust the little people. Earthquakes shake and a dam breaks, flooding the town. Will Elliot give in to the machine's promises for unlimited power, or can Lauren convince him to reject its lies?