The cause of the toxic leak is revealed and it turns out to be Adams fault. That's a shocker and a half. It turns out that the young farmer busted some barrels that contained hazardous chemicals and thus leaked into the stream. Shadrach returns this evening and hopes that his act of innocence will win an Oscar and convince Zak and Lisa that he had nothing to do with the damage done to their house. But, they don't believe him and kick him out.