La Femme Nikita - Season 4 - Eps 19: Time Out of Mind
Nikita is injected with a psychotic drug. It causes her to think & see things that don't happen. For instance, when she was eating in a restaurant, she sees a guy coming with a knife towards the other man, but it never happens. She sees blood on her hands one minute, then the next, it is gone. She was given this drug to help her get into the institution, where Crystal French's son, David French, is at. Nikita still has the drug in her body, so Michael gets her out of mission before something bad happens. She receives electroshock therapy causing her to forget the mission. Nikita falls asleep, thinking she is still in the Institution, but she is safe in her apartment again.
About La Femme Nikita

Title: La Femme Nikita
First Air Date: 1997-01-13
Last Air Date: 2001-03-04
Status: Ended
Rating: 7.428/10 (from 249 votes)
Language: EN
Seasons: 6
Total Episodes: 96
Network: USA Network
Genres: Action & Adventure, Drama
Production Companies: Unknown
Synopsis
La Femme Nikita was a Canadian action/drama television series based on the French film Nikita by Luc Besson. The series was co-produced by Jay Firestone of Fireworks Entertainment and Warner Bros.. It was adapted for television by Joel Surnow. The series was first telecast in North America on the USA Network cable channel on January 13, 1997, and ran for five television seasons—until March 2001. The series was also aired in Canada on the over-the-air CTV Television Network. La Femme Nikita was the highest-rated drama on American basic cable during its first two seasons. It was also distributed in some other countries, and it continues to have a strong cult following.
Cast

Peta Wilson
Nikita

Roy Dupuis
Michael

Matthew Ferguson
Seymour Birkoff

Eugene Robert Glazer
Operations

Don Francks
Walter