S4E18
Episode 18: Crime and Punishment
⚠ Spoiler alert This recap gives away what happens in this episode.
Episode Summary & Review
Supergirl and Lena go to Stryker’s Island to check out Lex’s cell, and find a clue to his schemes. Supergirl is declared a criminal and is forced to question whether she does more harm or good, while James deals with the fallout from being injected with the serum.