The Flash — “Trajectory” — Image FLA216a_0007b — Pictured (L-R): Tom Cavanagh as Harrison Wells and Violett Beane as Jesse — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Trajectory” — Image FLA216a_0117b — Pictured: Grant Gustin as Barry Allen / The Flash — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Trajectory” — Image FLA216a_0130b — Pictured: Grant Gustin as Barry Allen / The Flash — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Trajectory” — Image FLA216b_0007b — Pictured: Tom Cavanagh as Harrison Wells — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Trajectory” — Image FLA216b_0025b — Pictured (L-R): Violett Beane as Jesse and Tom Cavanagh as Harrison Wells — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Trajectory” — Image FLA216b_0041b — Pictured (L-R): Carlos Valdes as Cisco Ramon, Allison Paige as Trajectory, Violett Beane as Jesse, Tom Cavanagh as Harrison Wells, and Danielle Panabaker as Caitlin Snow — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Trajectory” — Image FLA216b_0046b — Pictured (L-R): Violett Beane as Jesse and Allison Paige as Trajectory — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Trajectory” — Image FLA216b_0047b — Pictured (L-R): Tom Cavanagh as Harrison Wells, Allison Paige as Trajectory, and Violett Beane as Jesse — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Trajectory” — Image FLA216b_0060b — Pictured (L-R): Allison Paige as Trajectory and Tom Cavanagh as Harrison Wells — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Trajectory” — Image FLA216b_0079b — Pictured: Danielle Panabaker as Caitlin Snow — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Trajectory” — Image FLA216b_0103b — Pictured (L-R): Danielle Panabaker as Caitlin Snow and Carlos Valdes as Cisco Ramon — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Trajectory” — Image FLA216b_0109b — Pictured (L-R): Tom Cavanagh as Harrison Wells, Danielle Panabaker as Caitlin Snow, and Allison Paige as Trajectory — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Trajectory” — Image FLA216b_0172b — Pictured: Allison Paige as Trajectory — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Trajectory” — Image FLA216b_0275b — Pictured: Grant Gustin as Barry Allen / The Flash — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “Trajectory” — Image FLA216c_0022b — Pictured: Grant Gustin as Barry Allen / The Flash — Photo: Katie Yu/The CW — © 2016 The CW Network, LLC. All rights reserved.

Official Synopsis:

“Trajectory” — (8:00-9:00 p.m. ET) (TV-14, LV) (HDTV) 

THERE IS A NEW SPEEDSTER IN CENTRAL CITY; WILL THE FLASH BE ABLE TO KEEP UP? – Deciding to blow off some steam, Barry (Grant Gustin) and the team head out for a night on the town only to encounter an unexpected speedster who is up to no good. Iris (Candice Patton) is challenged by an assignment from her new boss (guest star Tone Bell), and is surprised when friction turns to flirtation. Glen Winter directed the episode written by Lauren Certo and Lilah Vandenburgh (FL216). Original airdate 3/22/16.