Untouchable

"Untouchable" is the twelfth episode of the third season of The Flash, and the fifty-eighth episode overall. It aired on February 7, 2017.

Synopsis
Barry and the team at S.T.A.R. Labs work together to bring down Clive Yorkin, a criminal meta-human who is methodically killing people by causing them to decompose at an accelerated rate. Joe becomes his next target but it’s Iris who is caught in the crossfire. The Flash mentors Kid Flash and begins to elevate the newer speedster’s training to another level.

Trivia

 * As part of a tie-in to The LEGO Batman Movie, special LEGO end cards were shown immediately following the end credits.
 * Cisco quoted the "May the odds be ever in your favor" line from The Hunger Games series