Watch Supergirl Online: Season 6 Episode 15

Did Supergirl find the remaining totems?

On Supergirl Season 6 Episode 15, there was even more heartache for everyone when Nyxly made her next move to get all the power.

Uncertain About Her Powers

Meanwhile, William disappeared, leading to some big concerns about his future.

Elsewhere, Alex faced the biggest challenge of her life as she turned to her girlfriend for support.

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