===Second Film===
The second next film began with Bill Nye back in the jungle. While he looked for Ellen, she swung behind him on a vine and began to protest the whole adventure. Bill then informed her that they were now at the dawn of humanity, and a very important discovery was about to take place.Guests then saw a caveman discovering fire. Following this discovery a montage of man's progress using various forms of energy (including wind, steam, and gasoline) was shown. The montage ended with Bill and Ellen flying in a helicopter, with Ellen asserting that she was ready for Jeopardy!. Bill proceeded to tell her that she was not quite ready, and he began to explain potential future energy sources including solar, wind, and hydroelectric energy- which all have had their own problems. Bill also further explained fossil fuels such as coal, natural gas, and oil, saying that although these sources of energy would eventually run out, things like off shore drilling and satellites could help find new sources. Bill and Ellen also discussed how nuclear and fusion energy could also be solutions to our the planet's energy problems. The two celebrities concluded that as long as we keep working on it, there should would be lots of energy options in the future.
===Final Film===