Summary Darwin meets Joseph Dalton Hooker, botanist and friend, and discusses with him his theory about the evolution of species, but he has still too little evidence to make it public. Captain FitzRoy is now in politics. But his inability to control himself hinders his political career in parliament. He becomes governor of New Zealand for 5 years. The loss of Darwin's daughter and later on of his son make Darwin an agnostic. Forced by a publication of Alfred Russel Wallace, Darwin agrees to make his results public. FitzRoy is visiting Darwin. He has not changed, he still deeply believes in the words of the bible but also recognizes the happy times of friendship they had on the Beagle. Darwin finishes his book "The Origin of Spcies" and it is published. The reaction of the common people and especially of the church is disastrous. Because of his health, Darwin rejects the invitation of the University of Oxford for the annual meeting. Hooker and Thomas Henry Huxley, knowing that Darwin's latest publication will be central part of the discussion, take sides for Darwin. Bishop Wilberforce accompanied by FitzRoy argue against Hooker and Huxley for the theory of Darwin. FitzRoy sees this as a defeat and seems to be depressed. Later on he commits suicide. The series ends with an aged Darwin contemplating his life.

• Biography
• History