Swarmed is a 2005 Canadian film directed by Paul Ziller and starring Michael Shanks as a scientist trying to save a town from yellow jacket wasps.

He tests its effectiveness out on eight yellow jackets, finding that it successfully kills six, but the two who survived now have extremely high pheromone levels, resulting in increased aggression.

His body is taken to the morgue, where the mortician hears a buzzing from the janitor's mouth, and opens it, freeing the second wasp that had somehow trapped itself.

Agent Doug Heydon, tells her about the dead janitor and Kent's research, prompting her to investigate the possibility of a link between the two deaths.

Kent learns in shock that pesticide caused a genetic mutation in the wasp's chemical structure, resulting in incredibly potent venom along with the hyper-aggression.

Meanwhile, Cristina and Kent go to the home of a man who was stung to death by the swarm after they were attracted to the raw meat patties on his grill.

His assistant, Ellie Martin, finds his body and chases the wasp with a double-barreled shotgun, eventually killing it.

But before he can, the swarm arrives and begin to attack the crowd, including killing a sadistic reporter, Melanie Sheer, while her cameraman, Chuey, safely video tapes in a phone booth.

Washburn attempts to hide in a dunk tank, but two wasps kill him when they crawl down the hose he is breathing through and sting his mouth.

Eventually, Kent and Cristina arrive and begin administering antivenom to the stung, using tire patching spray to close up the wasps' breathing holes.