In season two, Scully was kidnapped by an ex-FBI agent turned mental patient named Duane Barry, and then taken from Barry by a military covert operation that were working with the alien conspirators, but was later returned. In season three she found out that a super hi-tech microchip has been implanted in the back of her neck. After having it removed, she developed cancer in the fourth season and was hospitalized after the cancer became terminal. She was saved after Mulder broke into the Department of Defense to retrieve another chip to be implanted back into her neck. At the time, Scully was also undergoing experimental medical treatments and was having a dramatic renewal of her faith.