This movie is set in three time frames that each span many years, the third time frame very many years. The first time frame is prehistoric times with Neanderthal and Modern Humans living together. The second time frame is modern time. The third time frame is the distant future. The time frames are tied together with an Acorn as a device to link them. The first encounter is in the distant past when it is made into an adornment and placed into the hand the deceased male Neanderthal before being buried in the ground. It is fond by the one person in modern time when she digs it out of the palm of the man from prehistory. In the final time frame, it is a gold Acorn that is given as a token of carrying on new generations to help humanity survive in a new world. In all three timelines, there is trouble that is almost insurmountable but with adaptation and ingenuity is overcome. They also all have generations passing on to the next. There is an introduction of a wonder drug that can change hu...