Quinn and Hynek visit Roswell, N.M., with Gen. Harding as an unknown local citizen makes threats to reveal the evidence associated with an extraterrestrial crash-landing that took place six years ago and make its existence known to the world.

Quinn and Hynek nearly reach a potential culprit, which could take them to just where they need to be to discover the truth behind the famous Roswell incident.

Hynek and Quinn investigate reports of a soldier who was allegedly taken inside a flying saucer at a remote military base in Nevada, where they subsequently learn about the several reasons why the secrets contained in Area 51 should not be released.

A supposed alien invades a rural home in Kentucky, which prompts the CIA to give Hynek and Quinn access to their top-secret program known as MK Ultra, which asserts that the alien attack has the potential to be the beginning of a larger plan.

The mysterious Man in Black kidnaps Hynek, which sends Quinn on a mission with the CIA to follow him and rescue Hynek.

Hynek visits the set of the film 'Close Encounters of the Third Kind' while he reflects on his various experiences dealing with the Robertson Panel and a peculiar extraterrestrial contactee whom he was willing to risk everything for.

Hynek and Quinn visit a ranch in Utah to learn more about a young family's peculiar claims about an inconceivable and potentially harmful phenomenon.

Hynek and Quinn investigate the theft of sensitive material taken from Gens. Harding and Valentine, but they soon discover that their potential culprit resides close than they imagined in addition to conclusive evidence of an alien conspiracy.

When a strange plane goes missing in the Canadian wilderness, Hynek and Quinn set off to find it and retrieve its missing cargo, but they encounter several potential dangers along the way to ensure the cargo is never found by outside people.

Hynek and Quinn face the tremendous pressure of preventing possible third world war when a series of unidentified flying and submersible objects are discovered during a largescale naval exercise that takes place near Russian waters.