Ep 9. Brainwave

As series protagonist Courtney Whitmore, aka Stargirl, continues to battle the villainous Injustice Society of America, she faces a new foe in "Brainwave," the ninth episode of the first season of DC's Stargirl.

The episode begins with a flashback revealing the origin story of ISA member Henry King Jr., aka Brainwave Jr. We see a young Henry struggling to control his developing telepathic powers, causing him to unintentionally harm those around him. His father, Dr. Henry King Sr., offers to help him harness his abilities, but Henry Jr. is skeptical of his father's ulterior motives.

In the present day, Courtney and her stepfather, Pat Dugan, aka S.T.R.I.P.E., conduct surveillance on the ISA's secret headquarters, the American Dream, where they witness Brainwave Jr. using his powers to torture a captive member of the Justice Society of America. The duo realizes they must act quickly to rescue their teammate and stop Brainwave Jr.'s plans.

Meanwhile, tensions mount between Courtney and her team, the new JSA, as they grapple with the aftermath of their recent battle and Courtney's sudden decision to take on the mantle of Stargirl. Her lack of experience and reckless behavior have put them all in danger, and they struggle to trust her leadership.

As they plan their assault on the American Dream, the JSA discovers that Brainwave Jr. has been manipulating their thoughts, causing rifts within the team and planting seeds of doubt in their minds. Courtney must find a way to break his hold on her friends and work together to defeat him.

When they finally confront Brainwave Jr., they are shocked to discover his true identity and his personal connection to one of their own. As the battle escalates, Courtney must make a choice that could mean the difference between victory and defeat for the JSA.

"Brainwave" is a thrilling episode that explores the complex relationships between the show's characters while providing plenty of action and suspense. As the stakes get higher and the threats become more dangerous, the JSA must put aside their differences and unite in their fight against evil. With its strong performances and engaging storytelling, DC's Stargirl continues to dazzle audiences with its unique blend of superhero adventure and heartfelt drama.