When the children of the world’s greatest secret agents unwittingly help a powerful game developer unleash a computer virus that gives him control of all technology, they must become spies themselves to save their parents and the world.

Carmen and Juni think their parents are boring. Little do they know that in their day, Gregorio and Ingrid Cortez were the top secret agents from their respective countries. They gave up that life to raise their children. Now, the disappearances of several of their old colleagues forces the Cortez’ return from retirement. What they didn’t count on was Carmen and Juni joining the “family business.”

Eight years after the third film, the OSS has become the world’s top spy agency, while the Spy Kids department has since become defunct. A retired spy Marissa (Jessica Alba) is thrown back into the action along with her stepchildren when a maniacal Timekeeper (Jeremy Piven) attempts to take over the world. In order to save the world, Rebecca (Rowan Blanchard) and Cecil (Mason Cook) must team up with their hated stepmother. Carmen and Juni have since also grown up and will provide gadgets to them.

Carmen’s caught in a virtual reality game designed by the Kids’ new nemesis, the Toymaker. It’s up to Juni to save his sister, and ultimately the world.

Exploring the further adventures of Carmen and Juni Cortez, who have now joined the family spy business as Level 2 OSS agents. Their new mission is to save the world from a mad scientist living on a volcanic island populated by an imaginative menagerie of creatures. On this bizarre island, none of the Cortez’s gadgets work and they must rely on their wits–and each other–to survive and save the day.

Former CIA spy Bob Ho takes on his toughest assignment to date: looking after his girlfriend’s three kids, who haven’t exactly warmed to their mom’s beau. And when one of the youngsters accidentally downloads a top-secret formula, Bob’s longtime nemesis, a Russian terrorist, pays a visit to the family.

FBI agent Malcolm Turner goes back undercover as Big Momma, a slick-talking, slam-dunking Southern granny with attitude to spare! Now this granny must play nanny to three dysfunctional upper class kids in order to spy on their computer hacked dad.