The speedy runner Barry Allen and his own hit series "The Flash" will introduced "King Shark" on the next episode. 

The official preview and synopsis for Episode 15 are out now, and we would also want to share the details via Melty. Read the summary about "King Shark" below:

"ARROW'S DIGGLE AND LILA CROSS OVER TO THE FLASH TO TAKE ON KING SHARK - When King Shark escapes from an A.R.G.U.S. holding tank, Lila and Diggle travel to Central City to warn The Flash. King Shark shows up at the West house and attacks Joe, Iris, Wally and Barry."

The website has also taken notes regarding the trailer. Like in the beginning Barry Allen was seen around a body of water. "Has he been lurked by the King Shark so he could finish him off easily?" We would like to now when the next episode arrives.

Furthermore, the end of the trailer had Cisco saying that they need a bigger Flash. Are they going to make Barry Allen a "supersized hero" that can throw out the formidable King Shark?" Let us keep our fingers crossed.

"The Flash" series features Grant Gustin as Barry Allen, Candice Patton as Iris West, Danielle Panabaker as Caitlin Snow, Carlos Valdez as Cisco Ramon, Tom Cavanagh as Dr. Harrison Wells, Jesse L. Martin as Joe West, Rick Cosnett as Eddie Thawn, and Patrick Sabongui as Captain David Singh, to mention a few.

"The Flash" Season 2 Episode 15 entitled "King Shark" will air on Tuesday, February 23 at 8 p.m. ET/PT on The CW.