I’ve heard of flower power, but that is ridiculous.
It took until 1976, but Doctor Who finally turned the Doctor into a secret agent, replete with a loquacious super-villain who commands an army of uniformed henchmen for a foe, in Robert Banks Stewart’s “The Seeds of Doom” (Story Production Code 4L). Aside from the alien plant creature bent on consuming the planet, this story could have featured Roger Moore or Patrick Macnee with little alteration. The Fourth Doctor’s scientific knowledge advances the plot but does not inform the resolution in the least; he’s an action hero, through and through, jumping through windows, donning disguises, brandishing pistols, and wrestling with bad guys mere inches from whirring blades of death.
“The Seeds of Doom” could not have been made during Hartnell or Troughton’s runs. Indeed, the analogous Second Doctor story, “The Seeds of Death,” which also features deadly alien seed pods finding their way to Earth, centers around the dangers of technocracy, the Doctor having to match wits with bureaucrats and Ice Warriors, the former being perhaps the more difficult foe. In Stewart’s tale, the Fourth Doctor confronts a chlorophyl-thirsty megalomaniac who composes orchestral overtures for his beloved plants and commands a giant garden estate patrolled by flunkies with matching jumpers and submachine-guns. No subtle disquisition on humanity’s increasing tendency towards centralized thought, this.
It wouldn’t be a Robert Banks Stewart story without world agencies, and here the World Ecological Bureau’s Antarctic expedition finds a giant seed pod buried twenty thousand years deep in the permafrost. The Doctor is dispatched by UNIT to assist the investigation, but before he can arrive, the pod releases a tendril that infects a researcher. The hapless man turns into a Krinoid, a “galactic weed,” in the Doctor’s parlance, that has the nasty side effect of consuming all non-plant life on any world where it germinates. They always travel in pairs, and the Doctor helpfully digs up the second pod to prove his point.
Harrison Chase, the wealthy hortiphile, learns of the pod through a corrupt contact at the WEB and sends two henchmen to retrieve it (and dispose of any pesky witnesses). Given that the story starts in Antarctica, at a weather-isolated base, one feels at the beginning that the action will take place in this small space, with a dwindling number of survivors fighting against the plant-creature and Chase’s thugs. Stewart has other ideas, though, and by the end of the second of six episodes, the initial Krinoid is destroyed in a blast triggered by the bad guys, killing the last of the researchers as well. Only the Doctor and Sarah survive, because of course they do.