The Flash — “King Shark” — Image FLA215a_0089b — Pictured: Grant Gustin as Barry Allen / The Flash — Photo: Cate Cameron/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “King Shark” — Image FLA215a_0104 — Pictured (L-R): Grant Gustin as Barry Allen / The Flash, Keiynan Lonsdale as Wally West, Jesse L. Martin as Detective Joe West and Candice Patton as Iris West — Photo: Cate Cameron/The CW — © 2016 The CW Network, LLC. All rights reserved

The Flash — “King Shark” — Image FLA215a_0111 — Pictured (L-R): Grant Gustin as Barry Allen / The Flash and Keiynan Lonsdale as Wally West — Photo: Cate Cameron/The CW — © 2016 The CW Network, LLC. All rights reserved

The Flash — “King Shark” — Image FLA215b_0054b — Pictured (L-R): Grant Gustin as Barry Allen / The Flash and David Ramsey as John Diggle — Photo: Bettina Strauss/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “King Shark” — Image FLA215b_0030 — Pictured (L-R): Grant Gustin as Barry Allen / The Flash, David Ramsey as John Diggle, and Audrey Marie Anderson as Lyla — Photo: Bettina Strauss/The CW — © 2016 The CW Network, LLC. All rights reserved

The Flash — “King Shark” — Image FLA215b_0091b — Pictured (L-R): Grant Gustin as Barry Allen / The Flash and Danielle Panabaker as Caitlin Snow — Photo: Bettina Strauss/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “King Shark” — Image FLA215b_0163b — Pictured (L-R): Grant Gustin as Barry Allen / The Flash and Danielle Panabaker as Caitlin Snow — Photo: Bettina Strauss/The CW — © 2016 The CW Network, LLC. All rights reserved.

The Flash — “King Shark” — Image FLA215b_0120 — Pictured (L-R): Grant Gustin as Barry Allen / The Flash, Danielle Panabaker as Caitlin Snow, and David Ramsey as John Diggle — Photo: Bettina Strauss/The CW — © 2016 The CW Network, LLC. All rights reserved

The Flash — “King Shark” — Image FLA215b_0084 — Pictured (L-R): Grant Gustin as Barry Allen / The Flash and David Ramsey as John Diggle — Photo: Bettina Strauss/The CW — © 2016 The CW Network, LLC. All rights reserved

The Flash — “King Shark” — Image FLA215b_0147b — Pictured (L-R): David Ramsey as John Diggle and Grant Gustin as Barry Allen / The Flash — Photo: Bettina Strauss/The CW — © 2016 The CW Network, LLC. All rights reserved.

Official Synopsis:

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

“ARROW’S” DIGGLE (DAVID RAMSEY) AND LILA (AUDREY MARIE ANDERSON) CROSS OVER TO “THE FLASH” TO TAKE ON KING SHARK –When King Shark escapes from an A.R.G.U.S. holding tank, Lila (guest star Audrey Marie Anderson) and Diggle (David Ramsey) travel to Central City to warn The Flash (Grant Gustin). King Shark shows up at the West house and attacks Joe (Jesse L. Martin), Iris (Candice Patton), Wally (Keiynan Lonsdale) and Barry. Hanelle Culpepper directed the episode written by Benjamin Raab & Deric A. Hughes (#215). Original airdate 2/23/16.