Honey, I Blew Up the Kid

Wayne Szalinski and his family relocate to the vibrant state of Nevada, aiming for a fresh start after their previous adventures. They joyfully welcome their energetic two-year-old son, Adam, who adds a lively dynamic to the household.

As the family settles into their new home, Wayne's wife, Diane, departs to assist their daughter, Amy, with her transition to college life. This leaves Wayne to navigate the household, filled with both the challenges of raising a toddler and the budding teenage complexities of Nick.

Nick develops a crush on Mandy Park, who Wayne has hired to babysit Adam. This crush adds a new layer of tension and excitement to the family dynamics as Nick navigates his feelings.

Wayne, driven by his passion for invention, heads to Sterling Labs to showcase his latest creation: an advanced version of his shrink ray that can enlarge objects. He hopes to make improvements and demonstrate its capabilities with his family.

In an exhilarating but flawed experiment, Wayne, Nick, and Adam attempt to test the new device on Adam's cherished toy, Big Bunny. However, chaos ensues when little Adam inadvertently activates the device, leading to unforeseen consequences.

Due to an electrical surge, Adam and his beloved Big Bunny inexplicably grow to towering heights, with Adam reaching an astonishing 7 feet tall. This transformation leaves Wayne and Nick in shock as they grapple with the bizarre situation.

Diane unexpectedly returns home to find her family entangled in the surreal predicament involving their enlarged son. She joins Wayne and Nick in the frantic effort to manage the chaos that has unfolded in their household.

To restore order, the family sets out to retrieve Wayne's original shrink ray from storage. However, things spiral out of control when Mandy panics upon discovering the situation, forcing Nick to explain the bizarre reality to her amidst the chaos.

As Nick and Mandy attempt to find Adam, they inadvertently get caught and taken away, further complicating the family's efforts to manage Adam's size. Meanwhile, Wayne and Diane confront Dr. Hendrickson's sinister plans against them.

Just when it seems hopeless, Clifford Sterling, the company's chairman, arrives to defend Wayne against Dr. Hendrickson's devious plans. His timely intervention provides a glimmer of hope for the struggling Szalinski family.

Amidst a powerful electrical storm, Adam continues to grow, reaching an unprecedented height of 50 feet. Mistaking Nick and Mandy for toys, he playfully scoops them into his pocket, leaving his frantic parents in dismay.

Wayne and Sterling discover that the dazzling neon lights of Las Vegas will worsen Adam's growth. They race against time to find a solution as Dr. Hendrickson and his accomplices plot to capture the giant boy.

Desperate to recapture Adam, Dr. Hendrickson commandeers a military helicopter, aiming to subdue the giant child. Meanwhile, Wayne decides to use his shrinking ray, but the challenge proves formidable as Adam continues to grow dangerously larger.

As chaos ensues on Fremont Street, Adam reacts to the tranquilizer darts fired at him. In a heartwarming moment, Diane courageously steps in to comfort her enormous son, which allows Wayne to prepare the shrinking device.

After a tumultuous series of events, both Adam and Diane return to their normal sizes. To everyone's surprise, Nick and Mandy have been shrunk down as well, evoking a tender moment as they share their affection before being restored.