The basic gist is that you've enrolled in Spy Academy and are training to become an M15 agent. Wait, this is not as corny as it sounds! You have to go through basic training first, which consists of a series of 10 minigame-type-things, each one measuring some meter of logic, speed, or reaction (they're called the SLR tests, I believe...).

Once you've completed those, you can move on to the real missions. So far I've only done one real mission because I can't figure out why the spy man won't let me play more of them....

The game is styled nicely, with some tough little mini games in there, and even comes with a "screen saver" if you sit there long enough!! (Don't ask how I found that one out...)

Oh and I almost forgot to mention, the game comes with a very nice little host video, a man, I forget his name, who leads you through the process.

Also:: You do have to register if you want to save your data, which I highly recommend and only takes like 2 seconds to complete, and as an added bonus when you've finished registering they bring you right back to the game, which is nice and not done by enough sites now a days.