Hastings flies back to Desert Rock. As night falls, the tarantula, now larger than a house, attacks the mansion. Deemer is killed, but Clayton escapes. Hastings returns for her in his car. The tarantula pursues them down the highway toward the town. The sheriff's men intercept, but their guns have no effect. Dynamite is gathered from town, but a blast large enough to blow up the highway does not faze the tarantula. As they evacuate the town, an Air Force fighter jet squadron, summoned by the sheriff, launches a napalm attack, incinerating the tarantula at the town's edge.
