“The Deadly Years”
“The Deadly Years” After their return a landing party, including Kirk, Spock and McCoy, suffers from accelerated aging. One crew members dies. Commodore Stocker assumes command and endangers the ship entering the Neutral Zone, but luckily a cure is found and Kirk resolves the situation with his “corbomite maneuver” Summary by Ex-Astris-Scientia
I’m not sure why Bernd even mentions corbomite here. I must admit it’s been a while since I saw this episodes and I don’t clearly remember all the little things.
Hey, if you’re reading this, there’s a chance you’re at least a little interested in Star Trek? My dear reader, if you remember, can you please leave a little comment to refresh my memory? 
Other than that little detail, I remember that old Kirk was even more irritating than the young one. Totally and utterly unbelievable. Hated it. Have I mentioned I also hate the “big red button”? The one that has RESET written all over. Ughhrrr! For once I’d love to see a permanent change to one of the main characters. I’m dreaming of actually seeing the consequence of any accident in the next episode!