Ep 12. Untouchable

Barry Allen, a.k.a The Flash, returns to Central City in the twelfth episode of season three titled "Untouchable." The episode begins with a meta-human, Clive Yorkin, wreaking havoc across the city. Yorkin has the ability to age and decay anything he touches, making him a dangerous threat to both the people and structures of the city. As The Flash attempts to stop Yorkin, he realizes that no matter how fast he moves, he still can't touch Yorkin without suffering the same fate as his victims.

Meanwhile, Barry is also dealing with the aftermath of his decision to reveal his true identity to Iris. Despite her support, he can't help but feel guilty about putting her life in danger. Adding to his troubles, Barry is facing a new threat in the form of Wally West, who is determined to prove himself as a hero. Barry, worried about Wally's safety, tries to keep him away from the danger of the meta-human threat.

As the episode progresses, The Flash must find a way to stop Yorkin before he destroys the city. Along the way, Barry teams up with Julian, who has discovered some crucial information about Yorkin's powers. Meanwhile, Wally attempts to prove himself by taking on Yorkin himself, putting himself in danger.

As Barry and Julian work together to devise a plan to stop Yorkin, they realize that they will need the help of Cisco, who is busy dealing with his own problems. After some convincing, Cisco agrees to help and sets out to develop a weapon that can neutralize Yorkin's powers.

With time running out, The Flash races across the city in pursuit of Yorkin. As they come face-to-face, Barry realizes that the only way to stop Yorkin is by using the weapon Cisco has created. The two engage in an epic battle, with The Flash using his speed and agility to stay one step ahead of Yorkin.

In the end, The Flash is able to defeat Yorkin with the help of his allies. However, Barry must also come to terms with the fact that he can't protect everyone all the time. As the episode comes to a close, Barry and Iris share a touching moment as they reaffirm their love for each other.

Overall, "Untouchable" is an action-packed episode that showcases the incredible abilities of The Flash. With a new meta-human to stop and personal issues to deal with, Barry must once again prove that he has what it takes to be a hero. The episode also explores the complex relationships between the characters and the challenges they face as they try to navigate their dual lives as superheroes and regular people.