War of the Worlds - Season 2 - Eps 11: Time to Reap
The Eternal instructs Malzor on how he can go back in time to 1953 in the aftermath of the failed invasion to ensure victory by inoculating his brethren from Earth's bacteria in order to change the course of history in the favour of the Morthren race. However, Blackwood and Kincaid have followed him through the same time tunnel to stop him from succeeding in giving the aliens a huge advantage in their conquest.
About War of the Worlds

Title: War of the Worlds
First Air Date: 1988-10-07
Last Air Date: 1990-05-14
Status: Ended
Rating: 6.2/10 (from 29 votes)
Language: EN
Seasons: 3
Total Episodes: 44
Network: Syndication
Genres: Drama, Action & Adventure
Production Companies: Unknown
Synopsis
Humanity must resume its war against the Martians when they revive after decades of hibernation following their defeat in the 1950s. The fate of Earth may very well rest in the hands of a small yet courageous band: astrophysicist Harrison Blackwood, paraplegic computer wizard Norton Drake, microbiologist Suzanne McCullough and military man Paul Ironhorse.
Cast

Jared Martin
Harrison Blackwood

Adrian Paul
John Kincaid

Lynda Mason Green
Suzanne McCullough

Catherine Disher
Mana

Denis Forest
Malzor