In this continuation of the Spy Kids saga, Juni Cortez has now retired from being a spy and is trying to live a normal life, while Carmen is still with OSS. When his sister Carmen is trapped inside a groundbreaking new video game, the only way to free her is to enter the game's virtual world and make it to the highest level. Juni goes in to rescue her, and together, the Spy Kids battle through tougher and tougher levels of the game, overcoming challenges...