Okay, this date has a lot of details to make it fun. Use the details you want to make it you own, but here is the basic outline
Make a spy themed date.
Create a clever way to invite your date letting them know what time and what day.
Leave them a TOP SECRET envelope, make them a cake with a message at the bottom, send them on a scavenger hunt, give them a message t decode, you choose. Make sure they reply back that they decoded your message and are set to go.
Then pick them up for the date, you can keep up the theme by going on a scavenger hunt to your car parked at a specific location. Or you can just drive. Make it fun.
Play laser tag! Get matching bandannas or sunglasses or whatever you can think of.
You could end it with watching a spy movie: Spy Kids, Mr. and Mrs. Smith, Mission Impossible, there are lots of spy movies out there
In the comments below leave some ideas on how to theme this date even more. The more theme the better.