Really? Am I the only one who voted for the lone spider? Here is how it play out:
Spider boards plane.
Spider gets pissed during flight.
Spider bites left testicle of pilot.
Due to extreme swelling of the genitalia, pilot ejects, freeing the spider.
Spider swings on web down to dragon.
Spider enters dragon's ear.
Spider bites ear.
Dragon enters convulsions, falls to ground.
Spider exits ear cbrown town, unharmed.