Original air date: 11/03/2019 Runtime: 42:23 min. On the eve of the worldwide launch of Andrea Rojas's virtual reality contact lenses, Kara and William team up on an investigation that exposes a terrorist plot; Kelly and Alex celebrate an anniversary, but Alex's safety is in jeopardy.
Original air date: 12/01/2019 Runtime: 42:01 min. In the Mid-Season finale, Supergirl’s struggle against Leviathan reaches a boiling point as she faces off against Rama Khan (guest star MITCH PILEGGI). Meanwhile, Hope proves to be an invaluable asset to Lena as they work to launch Project Non Nocere.
Original air date: 02/23/2020 Runtime: 42:23 min. Mxyzptlk (guest star THOMAS LENNON) returns with a proposition for Kara – what if she could go back in time and tell Lena her secret before Lex did, would things turn out different? Looking back over key moments throughout the series, Kara must decide if she wants to change history to become friends with Lena again. Familiar faces return in this special 100th episode.