Dr. Tony Newman prematurely enters the government's Time Tunnel project, and the project head, Doug Phillips, must go back to save him as they both fight for survival on the sinking Titanic.

This penultimate episode finds our turtle neck sweater-wearing heroes Doug and Tony in Khartoum during the famous battle of 1883. However, their problem isn't troublesome Arabs, but invading space ...

I was 7 or 8 years old when I caught the American TV series “The Time Tunnel.” I cannot recall specific episodes, but the whirling psychedelic tunnel was permanently etched in my mind.