Wayne (Jerry Hardin), a neighbor of the Kents, finds a piece of a meteorite and sends a sample to the laboratory for examination. A week later, a government agency takes over his farm saying that they have to investigate about environmental violations. Wayne knows that they are looking for the meteorite and he gives it to Martha and Jonathan to hide it. Perry sends Lois and Clark to Smallville to investigate this EPA report. Jonathan shows Clark the meteorite and they find out that it affects Clark and makes him weak. While investigating, Lois and Clark realize that Wayne has disappeared and they know that something is wrong. They get caught only to find out that Trask (Terence Knox) is behind everything and is looking for the meteorite to kill Superman. Trask kidnaps Clark's parents and threatens to kill them if Clark will not tell him where is Superman. Clark admits that he is Superman but since he does not have his powers, Trask does not believe him. Clark gets his powers back and saves his parents. Trask sees it and he uses the meteorite to kill him but Clark manages to destroy it. The two of them fight and Trask gets killed by the Sheriff (Joleen Lutz). Lois writes the story and names the meteorite kryptonite.