'The Flash' Season 3 Episode 21 Update: Brings Explosives to Savitar's Intention to Kill Iris; Tracy Designs a Trap

Savitar's true identity has been finally revealed in "The Flash" season 3 episode 20. It turned out that he is actually Barry Allen's (Grant Gustin) future version but fans may wonder why he is determined to kill Iris West (Candice Patton). Barry has just got back from his journey to the year 2024 only to learn that Killer Frost (Danielle Panabaker) actually helped Savitar, which he finds devastating. Episode 21 sees the team's quest in an attempt to stop Savitar and Tracy Brand (Anne Dudek), the scientist is said to be the only one who can perform such damage to him.

"The Flash" season 3 episode 21 sees Tracy getting in order in an attempt to beat Savitar, although Killer Frost would be another problem to deal with in the upcoming episode. Killer Frost has apparently turned her allegiance to the evil side and H.R. (Tom Cavanagh) will do his best to convince Tracy in creating a trap to manipulate these two thugs. Lots of questions were raised as for why Savitar is badly scarred and what makes him a villain.

It appears that these questions will soon be answered in "The Flash" season 3 episode 21. Executive producer Andrew Kreisberg told Comic Book Movie that fans will learn the answers to these questions in the upcoming episode. "You get that in the next episode, and the mystery is ongoing, but obviously Savitar is a version of Barry Allen, a heavily scarred version," he said.

Kreisberg went on to say that this twist in the storyline of "The Flash" season 3, where the darkest rogue in the series turns out to be a heavily damaged version of the show's lead hero is something extremely interesting and fresh to all fans. However, as CarterMatt points out, there must be difficult decisions to make as a result. This is something that fans should watch out for.

"The Flash" season 3 episode 21 is titled "Cause and Effect." It is scheduled to air on May 9 at 8 PM on The CW. Stay tuned to Celebeat for more entertainment updates.