Ep 22. The Quest for Peace

In the season 4 finale of Supergirl, titled "The Quest for Peace," our titular hero must face off against Lex Luthor one final time as he puts his ultimate plan into action. With the help of Lena, James, and Brainy, Supergirl races against the clock to stop Lex's plan from destroying the city and ultimately, humanity as we know it.

Throughout the season, Lex has been working behind the scenes to gain power and manipulate those around him, all while skirting the law. With his genius intellect and immense wealth, he has been able to stay one step ahead of our heroes, but in the final episode, Supergirl and her allies finally catch up to him.

As Lex's plot is set in motion, Supergirl must use every ounce of her strength and wit to stop him. Meanwhile, Lena is forced to confront her own demons as she realizes the extent of her involvement with Lex, and James must face a difficult decision that could greatly impact his future.

The episode is filled with tension and action, as Supergirl and her team race against the clock to prevent a catastrophic event. We see their strengths and vulnerabilities as they work together to save the day, showcasing the power of friendship and loyalty.

But even as they work to stop Lex, there are surprise twists and turns that keep the audience on the edge of their seats until the very end. And as the season comes to a close, we are left with a sense of hope and renewal, reminding us that even in the darkest of times, there is always a glimmer of light.

Overall, "The Quest for Peace" is a thrilling and satisfying conclusion to an exciting and thought-provoking season of Supergirl. It is a testament to the strength and resilience of our heroes, and leaves us eager to see what challenges they will face in the future.