Supergirl - Season 4 Episode 21
Kara comes face to face with Red Daughter and the two engage in an epic battle. Determined to find a way to extract the Harun-El, Lena turns to an unlikely source for help - Lillian Luthor. Meanwhile, Alex realizes she's missing parts of her memory, and Brainy, Nia and J'onn set out to track down aliens who have been abducted by Lex.
First Air Date : 2015-10-26
Last Air date : 2021-11-09
Runtime : 57 minutes
Genre : Drama, Sci-Fi & Fantasy, Action & Adventure
Cast : Melissa Benoist, Chyler Leigh, David Harewood, Katie McGrath, Jesse Rath, Nicole Maines
Crew : Karen Maser (Co-Executive Producer), Jay Faerber (Supervising Producer), J. Holtham (Supervising Producer), Emilio Ortega Aldrich (Producer), Elle Lipson (Co-Producer), Chris Pavoni (Co-Executive Producer)
Quality : 
Subtitles :
- Season 4 : Episode 12018-10-14
- Season 4 : Episode 22018-10-21
- Season 4 : Episode 32018-10-28
- Season 4 : Episode 42018-11-04
- Season 4 : Episode 52018-11-11
- Season 4 : Episode 62018-11-18
- Season 4 : Episode 72018-11-25
- Season 4 : Episode 82018-12-02
- Season 4 : Episode 92018-12-11
- Season 4 : Episode 102019-01-20
- Season 4 : Episode 112019-01-27
- Season 4 : Episode 122019-02-17
- Season 4 : Episode 132019-03-03
- Season 4 : Episode 142019-03-10
- Season 4 : Episode 152019-03-17
- Season 4 : Episode 162019-03-24
- Season 4 : Episode 172019-03-31
- Season 4 : Episode 182019-04-21
- Season 4 : Episode 192019-04-28
- Season 4 : Episode 202019-05-05
- Season 4 : Episode 212019-05-12
- Season 4 : Episode 222019-05-19
