Synopsis: Now that the wasps have killed all the Quarks, there's only one opponent left alive: a solitary wasp. But this one's clever, and the Doctor and Jamie have little room to maneuver. Eventually, the Doctor and Jamie ascend a girder, tempting the wasp to charge at them at full speed. At the last moment, the duo slide down the girder before the wasp can change course. It stings the metal girder, apparently causing its stinger to break off. It then falls, dead, to the floor.
Jamie and the Doctor shimmy out of the underground city and return to the TARDIS, glad that this encounter with the Quarks is over. Meanwhile, the Quarks back at the laboratory that hatched the wasp plan, note that they will have to come up with something else if they wish to defeat their enemies.
Notes: The Doctor explains that the final wasp was killed by trying to sting the metal girder. However, this would appear to be a bit of a factual mistake. Wasps aren't a one-sting-only variety of hymenoptera (only honey bees exhibit this kind of "suicide sting"). And it's not clear that, even if the sting broke off that the wasp would die. This was the final Second Doctor strip to be featured in the color center page of TV Comic. From here on out, the strip moved to a black and white page.