Guest-starring Iron Man! To obtain the final clue she needs to solve her father’s murder, Payback has made an enemy of Tony Stark. Big mistake. Now that she’s finally on the verge of learning the killer’s identity, can she put the pieces of the puzzle together before the Armored Avenger makes good on his vow to take down all the True Believers?
May the Speed Force Be With You: "The Flash" Finale's Greatest Moments