Grateful to the Taylor family for helping one of their own return home to them, the Asogians of the planet Brodo Asogi begin to take a benign interest in intervening in Earth's history in order to steer us on a better evolutionary path. E.T. finds this a most welcome development, but he misses Elliott and wants to organize an expedition to visit Earth and maybe begin a potential culture exchange between Terrans and Asogians that could be their interstellar alliance for galactic civilizations.
But a more sinister extraterrestrial race called the Herods has also heard of Earth and plans on capturing some humans to experiment on and vivisect them in order to breed a super race. When E.T. warns the Taylors and Tedrow "Keys" Garrison of this development, the Asogians' expedition must get underway while Elliott, Gertie, Michael and their friends evade capture on Earth by the Herods and a splinter alien hunter cult targeting them until E.T. can arrive to save the day.
