The Invisible Man - 1 ª Season

Facing life without parole for a crime he ultimately didn't commit, crook Darien Fawkes is offered a pardon if he'll agree to participate in his brother's medical experiment: the insertion into his brain of a synthetic gland which secretes a light-bending substance called Quicksilver, which renders whoever or whatever is cloaked in it invisible. But Quicksilver also breaks down Darien's sanity without the regular injection of a counter-agent, and when terrorists gun down everyone involved in the project and steal all the relevant information, Darien is recruited by the experiment's backers, an ultra-secret and under-funded intelligence agency subsidized by the Department of Fish and Game, to stop the terrorists, avenge his brother's death, and get a fresh hit of the counter-agent.

The Agency is about to stop a man who is able to kill only by touching his target. He seeks revenge on everyone responsible for his condition including Darien's boss.

An FBI-protected witness is killed in a forest and the only eyewitness of the crime is a little girl who only speaks to her invisible (and imaginary) friend Ralph. Darien becomes Ralph to protect the girl and to solve the case.

An old man thinks he sees the future and some people commit suicide to avoid the prognosis become true. Darien and Hobbes investigate to prove the old man is a trickster.

Trying to find out more about The Keeper, Darien follows her and discovers an old woman being kept. Assuming she's being held against her will,Darien releases her. When he tells her what he did, she tells him that they have to get her back. When Darien finds her, she attacks him and Darien ages rapidly.