After a construction worker is killed by insects burrowing into his brain, Sam (Jared Padalecki) and Dean (Jensen Ackles) investigate the town’s history and find that the new housing development is being built on sacred Indian land. The Indians put a curse on the land after their reservation had been ravished and destroyed. Sam and Dean must find a way to survive and kill the deadly swarm of bees, locusts, spiders and beetles.
The episode was written by Rachel Nave & Bill Coakley and directed by Kim Manners.