If you never watched the Spy Kids franchise when you were a kid, I really worry for your childhood, because they were a defining feature of mine. Two kids have no clue that both their parents are spies, but that soon changes when they both disappear. The kids have to defeat a villain by themselves with no adult help, and when they get to the island they find that none of their equipment works and they have to rely on their own intelligence to get them through. Although when I've watched it back, the special effects are very outdated, and the film is really meant for kids, so I'm not sure I'd recommend watching it if you're above the age of about 12.