lie, according to investor lawsuits and the man who arranged the hidden camera across the street, john carnes who profits when the value of the stock goes down. >> i filmed four months and found that they produced essentially nothing. >> reporter: yet all the time, the company, china integrated energy, was selling its stock to unsuspecting american investors on the nasdaq stock exchange. the company's top executives rang the closing bell three years ago. >> we are so pleased to welcome china integrated energy to the market site today. >> reporter: but back in china, investors say china integrated energy was pulling a fast one. watch what the photos say on the one day the american investors were invited to the factory for a tour. >> the first time in four months, it's 7:00 in the morning, we see tanker trucks show up, and then at precisely 9:45, a big red bus shows up and it's full of investors. >> reporter: they're given a tour and put back on the bus and driven away. >> and the place shuts back down again just like it had been for the four months prior. >> reporter: and in the weeks followin