Ep 7. Wake Up

Residents of National City are left in shock as news of the revelation that Samantha is Reign spreads, sending shockwaves through the city. Supergirl is determined to find out what's going on and why it has happened, but her investigation takes her down a dark and dangerous path. She must work harder than ever before to keep her friends and loved ones safe as she tries to unravel the mystery of Reign's identity.

As the episode opens, Kara finds herself fighting to stay awake after having strange dreams about Reign and Samantha. She is convinced that something is not right and sets out to investigate why she is having these dreams. Meanwhile, Samantha's world is turned upside down as her memories resurface, revealing that she is actually Reign.

As the episode progresses, Kara learns that Reign is far more powerful than she ever could have imagined and that she may not be able to stop her on her own. She enlists the help of Lena, who agrees to work with her to create a special device that could help take Reign down. With the device in hand, Kara sets out to stop Reign once and for all.

But as she faces off against Reign, Kara discovers that there is more to the story than she initially thought. She learns that Reign is not just a powerful Kryptonian, but also has a personal connection to Samantha - a connection that Kara never saw coming. With this new information, Kara sets out to find a way to save Samantha from Reign's influence.

As the episode comes to a close, Kara and Lena work together to devise a plan to save Samantha and stop Reign's reign of terror. With the help of Alex and J'onn, they orchestrate a daring plan to infiltrate Reign's lair and take her down once and for all. But things don't quite go as planned, and the team is left in a race against time to save Samantha before it's too late.

Overall, Supergirl season 3 episode 7 is a thrilling episode that keeps viewers on the edge of their seats from start to finish. With plenty of action, intrigue, and drama, it is a must-watch for fans of the series.