Tremors - Season 1 (2003)

After a hang-glider is eaten, it is discovered that there is an Assblaster loose in the valley. It turns out it is the one Nancy sold two years ago, and she feels guilty. Meanwhile she, Jodi and Rosalita teach the students Burt's first survival class, with Burt busy with the Assblaster.

After two scientists are burned by acid, Burt and the others discover a bizarre animal/plant hybrid growing in the valley and hurry to destroy it before it spreads seeds.

Two Vegas mobsters arrive in Perfection, wanting to see El Blanco. After El Blanco eats one of them, swallowing an important key in the process, a hit is put on him, and Burt and the others must save him.

Burt and Tyler travel to Toluca, New Mexico to investigate a possible Graboid problem. However, the townsfolk believe extra-terrestrials are to blame.

Tyler tells Larry Norvel the story of Dr. Cletus Poffenberger when he first arrived in Perfection Valley with his dangerous pet, 4-12.

Protesters swarm Perfection, demanding the inhabitants to leave because their presence is supposedly harming El Blanco. El Blanco is behaving very erratically indeed. One of the protesters turns out to be Nancy's daughter, Mindy.

With Burt out of town, Tyler and a visiting scientist must save Perfection from swarms of flesh-eating insects which produce deafeningly loud sounds, courtesy of MixMaster.

Vegas mobsters target El Blanco once again in an attempt to retrieve the precious key he swallowed.

Following several mysterious deaths at an artificial lagoon Melvin is making in Bixby, it is discovered that a giant brine shrimp, created by MixMaster, is on the loose.

Burt and Tyler travel to Juniper, Arizona to deal with a Shrieker infestation, and encounter some difficulties in fighting them.