Trajectory arrives in town intent on creating maximum chaos. Trajectory's antics are misinterpreted as having been perpetrated by the Flash himself. Barry must thus act quickly to uncover the mystery of who is causing damage in which others think it is him, and what may be driving their mad desire for speed and destruction.
Barry is training hard to defeat Zoom but can't seem to get fast enough to match the evil speedster. Deciding to blow off some steam, Barry and the team head out for a night on the town, along with Jesse Quick only to encounter an unexpected speedster who is up to no good. Most of the people believe that this new speedster is the Flash, and that he's become a petty thief.
Iris is challenged by an assignment from her new boss, 'to expose the Flash as a fraud', and is surprised when friction turns to flirtation. Meanwhile, Barry finds out about the Velocity-9 and is tempted to take it to level the playing field against Zoom- his reasoning being that if everyone else is cheating, why can't he?
Team Flash is distracted from the problem with Zoom for a little while though, as they take on the newest speedster in town. It turns out, the female speedster is none other than Caitlin Snow's good friend, Eliza Harmon, a former collegue from Mercury Labs. Caitlin had asked for help balancing an equation to perfect velocity-9 but only gave Eliza 3 of the ingredients. Eliza somehow reverse engineered it and managed to concoct some of her own velocity-9 which she became instantly addicted to.
As 'Trajectory', a self appointed nickname, she was insane and diabolical, going so far as to lock Barry in the pipeline and demand more Velocity-9 from Team Flash when she ran out. In the end, Barry was able to corner her; trying to convince her to stop taking the drug. Instead of listening, she ran off after injecting herself once more. Her lightning turned blue, just like Zoom's, before she ran so fast that she essentially was disintegrated. Barry, disturbed by her blue lightning mentions this to the team back at S.T.A.R. Labs. They come to the conclusion that Zoom's lightning was blue like Trajectory's because he was taking a speed enhancing drug.
Cisco vibes Jay's helmet and finds that Jay is Zoom, resulting in Barry speeding off to a cliff and screaming.
|"The Man Who Saved Central City" • "Flash of Two Worlds" • "Family of Rogues" • "The Fury of Firestorm" • "The Darkness and the Light" • "Enter Zoom" • "Gorilla Warfare" • "Legends of Today" • "Running to Stand Still" • "Potential Energy" • "The Reverse-Flash Returns" • "Fast Lane" • "Welcome to Earth-2" • "Escape from Earth-2" • "King Shark" • "Trajectory" • "Flash Back" • "Versus Zoom" • "Back to Normal" • "Rupture" • "The Runaway Dinosaur" • "Invincible" • "The Race of His Life"|