End Day is a 2005 docu-drama produced by the BBC. It aired on the National Geographic Channel, on the TV series, National Geographic Channel Presents, and BBC Three that depicts a set of five doomsday scenarios. The documentary follows the fictional scientist Dr. Howell, played by Glenn Conroy, as he travels from his London hotel room to his laboratory in New York City, and shows how each scenario affects his journey as well as those around him, with various experts providing commentary on that specific disaster as it unfolds. After each 'End Day' runs its course, the day repeats, this time with the next scenario panning out.
The following descriptions of the program were released by the BBC:
At one point when Dr. Howell drives off in a taxi at the beginning of the second episode, a front of a cinema is visible behind with "Groundhog Day now showing". In Groundhog Day, the protagonist is stuck in a single day of his life, repeating it time after time with minor variations — similar to the life of Dr. Howell. Transitions between the disasters are shown such that it turns out that the prior disaster was actually a movie on a TV that has been left running overnight and the credits would roll as Dr. Howell's alarm clock goes off.