I was a faithful follower of Captain Midnight and would give quite a lot if I only had my Secret Squadron patch, decoder badge, and Ovaltine mug. I vaguely remember an episode in which Captain Midnight was racing through a tunnel on a motorcycle with water rushing behind him, filling the tunnel. He got far enough ahead of the water and found a large wheel that controlled doors that closed off the tunnel behind him, stopping the water. Now, I believe it was Captain Midnight, but, as many have indicated, after 60+ years, it could have been some other Saturday morning super hero. If this rings a bell with anyone, I hope you may lead me to that episode. It was always a thrill to watch. SW