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"Becky, this isn't some higher power fixing a miscalculation. You have powers. And they're affecting everyone around you, making them feel as awful as you used to feel."
"I'm sorry about that. But, maybe it's just their turn. Maybe for once, everyone else can feel for a second how bad I felt my entire life."
Barry Allen and Becky Sharpe

"Luck Be a Lady" is the third episode of the fourth season of The Flash, and the seventy-second episode overall. It aired on October 24, 2017.




Guest starring[]

Special appearance by[]



In flashbacks, the Thinker observes Becky Sharpe, a woman with seemingly unending bad luck, and determines that she will be easily manipulated. In the present, Becky robs a bank, and gets away when Barry slips on marbles. 

Harry arrives from Earth-2, and tells Wally that Jesse has decided to break up, (through the use of an atlantean breakup cube) in order to focus on her vigilantism.

Cisco deduces that Becky is a meta-human with the power of favorable luck while inducing misfortune to others. Barry realizes that the portal he used to escape the Speed Force exposed an entire busload of people, including Becky and Deacon, to transformative dark matter.

Harry informs Cisco that Jesse has expelled him from her crime-fighting team due to his attitude. Becky's powers expand out of control, reactivating the particle accelerator, which Harry deliberately allows, nullifying Becky's powers and leading to her incarceration.

Cisco and Harry identify twelve new metahumans created on the bus, and the latter suspects that an unknown party has manipulated events surrounding Barry's return.

Wally decides to leave on a journey to find himself following his breakup with Jesse.

The Thinker is revealed to be one step ahead of Team Flash as it is shown that he has been spying on S.T.A.R. Labs through the "Samuroid" helmet.

Back at the West house, Cecile reveals to Joe that she's pregnant.




  • The title is a reference to the song of the same name, featured in the musical Guys and Dolls. The song was played in the episode when Becky robbed the bank, as sung by Frank Sinatra.
  • During a skirmish in a game of laser tag, Cisco Ramon yells, "You have failed this city!" which was the occasional catchphrase of Oliver Queen throughout Arrow.
  • The break-up cube is made of Atlantean plastic, a reference to Atlantis (which exists above water on Earth-2);[1] the home of the superhero Aquaman in DC comics.
  • When the plumber goes to describe the West house, Joe suggests the word "bitchin'", a throwback to the season premiere, "The Flash Reborn", in which they decode a message from an entranced Barry that seemingly says "this house is bitchin'".
  • Wally decides to leave Central City and heads to Blue Valley. In the comics, Blue Valley is Wally's original home.
  • The sequence with the airplane and the geese and the old man is reference to Chesley Sullenberger and the US Airways Flight 1549.
  • Becky's blackjack dealer uniform is a reference to Hazard's suit in the DC Comics.
  • Cisco's shirt reads "Haikus are easy, But sometimes they don't make sense, Refrigerator", is a Haiku that showed up as a meme online around 2006-07 apparently originally written by Rolf Nelson of Dallas Texas. Eve Emelia published a writing journal of 108 blank white pages with the Haiku as the title in 2018. The Haiku has circulated online with a few different final lines for example Pancake on a stick or, Hippopotamus.
  • Barry tells Team Flash, "We make our own luck." This could be a reference to Harvey Dent aka Two-Face's quote in The Dark Knight: "I make my own luck".


  • Harry Wells is stated to have "total recall", even though he has forgotten things in the past before.
  • When tracking down the source of the dark matter, Cisco says that it's not even an intersection. However, they are clearly standing at an intersection.