Superbabies: Baby Geniuses 2 (also known as Baby Geniuses 2: Superbabies or simply Baby Geniuses 2) is a 2004 American science fiction family comedy film directed by Bob Clark and written by Gregory Poppen, from a story by Steven Paul. The sequel to the 1999 film Baby Geniuses, the film stars Jon Voight, Scott Baio, and Vanessa Angel. Following the events of the first film, four babies can communicate with each other using 'baby talk', and have knowledge of many secrets. The baby geniuses become involved in a scheme by media mogul Bill Biscane, later revealed to be known as Kane, who kidnaps children everywhere. Helping the geniuses is a legendary super-baby named Kahuna who stops Biscane's plots and saves children from being kidnapped by Biscane and his minions. He joins up with several other babies in an attempt to stop Biscane, who intends to use a state-of-the-art satellite system to control the world's population by brainwashing them and forcing people to not be active and watch TV the rest of their lives.

Like its predecessor, Superbabies received universally negative reviews and is often regarded as one of the worst films of all time. It was also a box office bomb, earning less than half its budget back.

The film starts with a group of babies in a day care center. Archie tells the others (Finkelman, Alex, and Rosita) a story about a super baby called Kahuna. Kahuna rescues kids all around the world. According to Archie, Kahuna rescued a group of children from an orphanage run by the evil Kane. Kahuna and Kane are nemeses and hate each other, but Kahuna always wins their battles.

Archie's father Stan, who seems to own the day care center, is letting it be used as a television set by the evil Biscane --I mean, Kane-- who is starting up his own TV channel. Archie notices someone spying on the goings-on at the television set in the bushes, but he isn't sure who it is. However, he begins to believe Kane is evil. He and the other babies sneak into Stan's office and decide to check out Kane, but are spammed. When they hear some of Kane's cronies approaching, Rosita, Alex and Finkelman run away, leaving Archie by himself. Archie overhears the cronies talking about Kane's plan, but he doesn't really understand it. However, he accidentally attracts their attention, but before they can get him, he is rescued by, you've guessed it, Kahuna, who is in fact real. But then Kahuna leaves and the other babies don't believe Archie. Kylie, Archie's older cousin and Stan's niece, takes them all out to the children's museum, but not before bumping into a friend and a disc falls into the pushchair. On the way to the museum they are stopped by loads of Kane's other cronies. But Kahuna rescues them all, and the babies realize that Archie was telling the truth. Kahuna takes them all to his base in Hollywood, where they meet Zack, whom Kahuna took in years ago. Kahuna's base is in fact a huge playground, and Kylie finds it weird. Kahuna transforms the babies into "superbabies": Archie is Brain Boy, Alex is Bouncing Boy, Rosita is Cupid Girl, and Finkelman is Baby Courageous. But they don't think these super alter-egos fit their personalities, and they tell Kahuna to change them back to normal. Which he does. After convincing Stan and Archie's mother that they are okay, Archie asks Kahuna to tell him where he got his powers from. But he refuses...so Archie eavesdrops on Zack and Kylie. Zack tells Kylie that Kahuna's father was a scientist and developed a formula of some sort, which Kahuna drank, and he was transformed into a super baby, but he is stuck as a child for good. Kahuna's brother didn't like it that everyone thought he and his family were freaks. When the father died, despite Kahuna being 18, he was put into an orphanage, but he escaped, and set out to rescue babies and children everywhere, and in the words of Zack, "a legend was born."