Ep 4. Albatross

Barry and his team at S.T.A.R. Labs are on the hunt for a new meta-human named Shawna Baez, alias Peek-a-Boo. She has the ability to teleport herself and anything she's touching to another location.

Detective Joe West collaborates with Barry to track down Shawna, who has previously robbed multiple banks by teleporting in and out of the vault without leaving any trace. She even holds a grudge against her ex-boyfriend who allegedly betrayed her in one of her heists.

As Barry starts to catch up to Peek-a-Boo, she starts using her powers to harm anyone who gets in her way. When she kidnaps Joe, it becomes clear that she's not afraid to kill anyone who gets in the way of her personal vendettas.

Meanwhile, Barry's personal life starts to get complicated when he tries to make progress with Iris. However, just as they start to explore their feelings for each other, Eddie Thawne (Iris' boyfriend) walks in, causing tensions to rise.

As the team interrogates Shawna, they learn how she got her powers and how she's been able to avoid detection for so long. They also uncover a darker side to the meta-human underworld as Shawna becomes a pawn in a much bigger game of power and secrecy.

With the help of his team at S.T.A.R. Labs, Barry must find a way to stop Shawna, rescue Joe, and keep his loved ones safe from harm. As he suits up in his Flash costume and races to confront Shawna, he'll need to use all his speed, intelligence, and courage to save the day.

Albatross is a thrilling episode that showcases not only Barry's powers as the Flash, but also his heart and determination as a hero and a friend. With plenty of suspense, action, and character development, it's a must-see for fans of the series.