The central mystery of is "The Pattern." The FBI realizes that the bizarre events (dubbed "Fringe Events") are not random. They are connected. Someone is testing the boundaries of reality.
The heart of the show is the relationship between Olivia Dunham (the FBI agent), Peter Bishop (the estranged son), and Walter Bishop (the brilliant but mentally fragile scientist). fringe -tv series- season 1
This setup introduces the central triumvirate of the series: The central mystery of is "The Pattern
Season 1 focuses on the formation of the Fringe Division and the discovery of "The Pattern"—a series of fringe science events occurring globally. Peter Bishop (the estranged son)
: Mysterious, bald men in suits who appear at the site of significant historical or fringe events begin to be noticed by Olivia and her team.