Following its three-week hiatus, the 16^th episode of "The Flash" season 2 now returns with Barry and his Star Labs team crashing into an unexpected female speedster.

Titled "Trajectory," the episode begins with Barry and his team deciding to keep their cool by going on a spree in the town, only to stumble upon a rogue speedster. In the synopsis for the episode, Iris' new boss played by guest star Tone Bell gives her an onerous assignment. Iris then finds herself bowled over as she finds out how things ultimately turn out.

"Trajectory" also features "Days of our Lives" alum Allison Paige, who plays Eliza Harmon, more widely known as Trajectory. She is a brilliant scientist who has a dual personality, much like that of Jekyll and Hyde.

In the original source, Trajectory is a Lex Luthor-created character whose arrival in Central City leads to a holy mess. Reports say that in the next episode, Barry has to find a way to strike her down before she snuffs out Flash's reputation.

Synopsis for the episode reveals: "Having arrived in town intent on creating maximum chaos, Trajectory's antics are misinterpreted as having been perpetrated by the Flash himself. Barry thus must quickly uncover the mystery of who is the girl in the mask--as well as what is driving her mad desire for speed and destruction."

Based on the trailer, it seems that Barry will end up on the losing end as he tries to get rid of the villain, as Caitlin is seen trying to take care of his lesions.

While Trajectory's advantage is her speed, Scarlet Speedster is backed up by the Star Labs team members and won't just take a licking.

"Trajectory" is scheduled to premiere on the CW on March 29, 2016 at 7:00 P.M.

Developed by Greg Berlanti, Andrew Kreisberg and Geoff Johns, "The Flash" is an American TV series based on the DC Comics character Barry Allen, more commonly known as "Flash."