The X-Files (1993)

S1E10 Fallen Angel

Title: Fallen Angel Plot: Mulder risks the existence of the X-Files by investigating a UFO crash site that the military is quickly trying to conceal. After being detained, he encounters Max Fenig, a passionate UFO enthusiast whose NICAP group has been tracking Mulder's investigations. Once released, Scully insists that Mulder return to Washington to confront his higher-ups and protect his position. However, Mulder discovers that Max harbors secrets of his own and chooses to disregard Scully’s advice, focusing instead on rescuing Max from the unfolding mystery.