Dark Net

Humans are social beings - but what happens when the emotional bonds that bind us together are threatened by forces we cannot see or touch, or worse, replaced entirely by the network? In this episode, meet a woman who has programmed her dead friend into a chat bot so he can live on forever; a Japanese family who has adopted a childlike AI robot as a member of their tribe; and a desperate mom turning to spyware to track her teenager's every move. Season finale.