YMMV / Supergirl (2015) S1E15 "Solitude"

• Broken Base: Indigo being a straight-up villain. Some would have liked to have seen the Indigo of the comics, a sweet and innocent sub-personality of the incredibly evil Brainiac 8. Others would prefer that particular story line not be put to screen so soon.
• Complete Monster: Brainiac 8, known better as Indigo, from season 1, is a Coluan imprisoned on Krypton for attempting to destroy the Kryptonian people. When she introduces herself on Earth, she turns every light in National City green, causing accidents and endangering hundreds of lives. Soon revealing her darker side, Indigo tries to launch nuclear missiles to destroy National City, planning to wipe out humanity. When defeated, she later teams up with Kara's uncle, Non, and activates Project Myriad to put humanity into a trance-like state. Indigo then puts her plan a step further into motion: to enhance the power to kill everyone else on Earth and then leave the planet, leaving Kara stranded as "queen of a dead world." Even in her last moments, Indigo gloats that she had left Project Myriad impossible to stop, taking comfort that humanity will follow her to the grave.
• Fanfic Fuel: Clark has a Legion of Super-Heroes ring. Did he have adventures with them as a teen like in the comics? Does this foreshadow Kara teaming up with them, and maybe meeting Brainiac 5?
• One-Scene Wonder: The titular Fortress of Solitude, which only shows up in a single scene.
• Special Effect Failure: It's pretty obvious when Supergirl and James are in a set rather than superimposed over actual Arctic footage.