Maggie (guest star Floriana Lima) attempts to help Winn but old loyalties get in the way.
“A new villain (guest star Teri Hatcher) comes to National City, putting Supergirl (Melissa Benoist) on high alert.
Meanwhile, Winn’s (Jeremy Jordan) girlfriend, Lyra (guest star Tamzin Merchant), gets Winn in trouble with the law.
Following the full trailer for the episode, The CW has released 28 photos from Supergirl Episode 2.16, which leads into the upcoming musical crossover!