Darien decides to have himself injected with his brother’s RNA in the hopes that he can discover how to remove the Quicksilver gland from his head.

Darien learns that the Keeper and the Official have been keeping antidote secrets.

The agents are infected by a fatal form of Quicksilver-producing bacteria, and the Keeper must figure out how to stop it before they all die.

The Official sends Darien and Hobbes on a mission to an exclusive Agency, and they end up in “The Community”, a town made up of U.S. intelligence operatives who had their covers blown up.

Darien's sudden immunity to the counteragent forces the Keeper to use an untested antidote.

A disfigured woman tries to enlist Darien's help..

Arnaud seeks out Darien for help in exchange for a cure for quicksilver madness.

Darien loses his memory after being struck by lightning, and Arnaud convinces him that he is his own brother and that his Agency friends are really trying to kill him.

The Keeper is accidentally injected with an experimental serum that could cause her to become permanently insane unless she can be given an antidote in time.

The Official sends Eberts out with the agents to capture a computer hacker who is trying to get at the Agency’s most sensitive information.

Darien rescues a 12-year-old boy from the sinister Chrysalis agency, only to discover that his body has been implanted with a deadly virus that will be released when he reaches puberty.

Darien works undercover to capture a mysterious international terrorist and finds himself facing incarceration to preserve his cover.

The agents find themselves hunting for the legendary Sasquatch on an Indian reservation after two men have been killed there under mysterious circumstances.

Hobbes becomes irrationally violent and shoots up a post office, and his co-workers are afraid he’s lost his mind again.

The agents are sent to capture a dangerous government assassin who is said to have switched allegiances, and Darien is stunned to discover that the man may be his own father, who has been missing for decades.

A strange old man who has lost the ability to experience normal sensation comes to Darien in the hopes that he can lead him to his late brother, Kevin, whom he blames for doing a horrible thing to him.

Darien helps a young woman who seems to be haunted by a strange apparition, and she is convinced it is her mother, who had disappeared mysteriously weeks before, trying to communicate with her.

The sinister head of the SWRB discovers that Gaither is still alive and storms the Agency to recapture him, kidnapping Alex and stealing all of the Keeper’s vital computer files in the process.

Darien goes to an acupuncturist who discovers his powers of invisibility and forces him to help her steal a set of ancient needles from a museum to treat her mentor, who is suffering from stomach cancer.

Darien and Hobbes learn that the Chrysalis Agency is artificially inseminating women all over the country and stealing their babies to create its own unstoppable army.

The keeper develops a way to keep Darien's invisibility static.

Alex finally locates her missing son at a Chrysalis baby camp, only to discover that he belongs to Stark, the agency’s sinister leader.