Fringe is based on sci-fi paranormal activity. Here there is shown that many paranormal activities are nothing but are done by some scientist done as an experiments on the common person.
There is group of people made of a FBI agent, a Scientist who is declared mad and his son who takes those paranormal cases and solves them.
John Noble as Walter Bishop is the guy I like the most, he has thrown his best performance as the Mad scientist.
Fringe has also got really good plot and out of the world technologies.