'End of the World' Story Code '9602' by William Welch Story by Peter Germano and William Welch

1910: the two time-travellers arrive in different areas of a mine shaft, just as a violent cave-in occurs. Although they both survive, Tony is now trapped in a sealed section of tunnel. Learning that two-hundred miners are also imprisoned by tons of dirt and rock, Doug sets off for help; however, the mining superintendent, Henderson, has given up any hope of rescuing his men, because he, like everyone else, believes that the Earth is about to be destroyed in a catastrophic collision with Halley's Comet. Infuriated at Henderson’s apathy, Doug manages to dig his friend out of the tunnel. Tony heads into town to get help in rescuing the miners, only to find the town deserted, the population having fled in terror. Meanwhile, Doug sets off to find Professor Ainsley, the famed astronomer who has predicted the comet’s forthcoming impact. Back at the Tic-Toc project, Lieutenant General Kirk, Doctor MacGregor and Doctor Swain attempt to send Doug a radarscope to help to convince Ainsley that the comet will pass Earth harmlessly, but the equipment is destroyed due to the effects of the comet affecting the Time Tunnel, blasting the equipment back at them…

Cliff-hanger: The Time Tunnel sends Doug and Tony to the Japanese Consulate in Honolulu, Hawaii – one day before the fateful attack on Pearl Harbor…

James Darren (Tony Newman), Robert Colbert (Doug Phillips), Whit Bissell (Lieutenant General Heywood Kirk), John Zaremba (Doctor Raymond Swain), Lee Meriwether (Doctor Ann MacGregor), Paul Fix (Henderson), James Westerfield (Sheriff), Gregory Morton (Professor Ainsley), Sam Groom (Jerry), Paul Carr (Blaine), Robert Adler (Man)

Directed by Sobey Martin
Produced and created by Irwin Allen
An Irwin Allen Production in Association with Kent Productions, Inc. and Twentieth Century-Fox Television, Inc.

TX:
US TX - 23rd September 1966

Notes:
*Featuring Doctor Tony Newman, Doctor Doug Phillips, Lieutenant General Heywood Kirk, Doctor Raymond Swain and Doctor Ann MacGregor