The Flash 5×15 Promo “King Shark vs. Gorilla Grodd” Season 5 Episode 15 Promo The Flash 5×15 “King Shark vs. Gorilla Grodd” Season 5 Episode 15 Promo – Check out the promo for The Flash Season 5 Episode 15 airing March 5th on The CW. Show More… 1,008 Comments Related Videos The Flash 2×15 Sneak Peek “King Shark” (HD) The Flash 2×15 Extended Promo “King Shark” (HD) The Flash 2×15 Promo “King Shark” (HD) The Flash 1×21 Trailer “Grodd Lives” (HD)