This Week in USA
Four to Doomsday
(incorporating: Part One / Part Two / Part Three / Part Four)
Last updated 20 June 2026
11:00pm-12:30am CDT (04:00 GMT) < > « »
Iowa Public TV
Featuring: Peter Davison, Janet Fielding, Sarah Sutton, Matthew Waterhouse, Stratford Johns, Annie Lambert, Philip Locke, Paul Shelley
On a giant spaceship, the foursome meets an advanced reptilian civilization planning to seize Earth; with Peter Davison.
Synopsis Source: Iowa PBS listings
Broadcast Source: IPTV