Infantino Street

"I can't believe they turned King Shark into a guard dog." "King Shark? That's adorable."

- Flash and Captain Cold

"Infantino Street" is the twenty-second episode of the third season of The Flash, and the sixty-eighth episode overall. It aired on May 16, 2017.

Synopsis
With only 24 hours left until Savitar murders Iris, Barry struggles to save the woman he loves and makes the choice to use any means necessary to do so. Realizing he has one option left to save her, the Flash turns to Captain Cold for help.

Trivia

 * Iris West is apparently murdered by Savitar and Barry may not be able to do anything to save her.
 * Iris will appear in the season finale.
 * The name of the street "Infantino" likely comes from one of the two creators of the character Barry Allen as well as the Rogues in the comics, Carmine Infantino.
 * Barry goes back in time and gets Leonard Snart at the year 1892 in Siberia while he was travelling with the Legends to hunt Vandal Savage.
 * Julian doesn't appear or even mentioned during the episode.
 * Snart mentions he likes Shark Week. Shark Week is an annual, week-long TV programming block, which features shark-based programming.
 * When Siberia at 1892 was shown, a blue title card that said the time and the place appeared on the screen. Those title cards are mostly shown on DC's Legends of Tomorrow.
 * When King Shark loses his hand, Snart mentions he had a similar incident, referring to the events of Left Behind.
 * This means that Flash recruits Snart at some point after this episode.
 * When parting ways with Barry, Snart says "there are no strings on me." Those would later be his last words when he sacrificed himself to destroy the Oculus in Destiny.
 * Chronologically, this episode shows the final meeting between Barry and Snart before Snart's death.
 * Snart mentioned that the last time he and Barry teamed up, it didn't go well for Barry, referring to the events of Rogue Air.
 * When Barry and Cisco had vibed the night that Savitar kills Iris, they had noticed H.R. Wells on the roof behind Savitar with a weapon. During the actual event, it is Joe West who was on the roof. Also, the reporter's commentary about Plunder was also changed when she mentioned that Kid Flash caught him rather than the Flash. This shows that some of history changed, but the main outcome remained unaltered.