The Flash
Luck Be a Lady
TV Flash files “Luck Be a Lady” as hour 72 of 184 in the TV Flash guide — The Flash (2014–2023) on The CW, season 4, episode 3, aired 2017-10-24, 60 min.
From the desk
How this hour is filed
This leaf is S04E03: listed hour 72 of 184 in the The Flash guide, hour 3 of 23 in season 4. It aired 2017-10-24 (60 min). The listed hour before it is “Mixed Signals” (S04E02). Next is “Elongated Journey Into Night” (S04E04).

Catalog log
Broadcast listing — not a TV Flash recap.
The team goes up against the second of the Thinker's metas: Becky Sharpe, aka Hazard, who can gain good luck for herself as long as everyone else suffers. Meanwhile, Cecile suggests to Joe that they buy a new house, and Iris tries to plan the wedding.
Viewer FAQ
Where does Luck Be a Lady sit in the The Flash guide?
S04E03 is listed hour 72 of 184 — hour 3 of 23 in season 4, season 4 episode 3.
When did The Flash S04E03 air?
Luck Be a Lady aired 2017-10-24 and is listed at 60 minutes.
Do I need Arrow first?
It is the 2014 spinoff and the Arrowverse's bright counter-argument. Arrow context helps; Barry's STAR Labs family is built to welcome a first-time speedster fan.
In the series
Why this series still plays
Grant Gustin's Barry Allen is the Arrowverse's heart-on-sleeve counter-argument: superspeed, STAR Labs found family, Reverse-Flash timeline headaches. Villains of the week plus season-long speedster myth. Sincere broadcast heroics — the cheerful engine that made CW crossovers annual events and multiverse storytelling feel like Thursday-night sport.
The CW did not stagger this one. **2014** put Grant Gustin's Barry Allen on the Thursday ledger as the Arrowverse's heart-on-sleeve counter-argument, and the overnights showed up. Greg Berlanti, Andrew Kreisberg, and Geoff Johns: forensic scientist gains superspeed, builds a found family of metahuman allies at STAR Labs — Candice Patton, Danielle Panabaker, Carlos Valdes, Tom Cavanagh's Wells, Jesse L. Martin's Joe. Villains of the week plus season-long speedster myth. Reverse-Flash timeline headaches included.…
Filed against
- Grant Gustin as Barry Allen / The Flash
Grant Gustin's Barry Allen / The Flash was the Arrowverse's heart-on-sleeve counter-argument — superspeed, STAR Labs found family, Reverse-Flash timeline headaches, villains of the week plus season-long speedster myth. Sincere broadcast…
- Candice Patton as Iris West
Candice Patton played Iris West on The Flash — Grant Gustin's heart-on-sleeve Arrowverse counter-argument, STAR Labs found family, Reverse-Flash timeline headaches, villains of the week plus a season-long speedster myth. Sincere broadcast…
- Danielle Panabaker as Caitlin Snow
Danielle Panabaker’s Caitlin Snow steadied The Flash as STAR Labs science with a pulse — Grant Gustin’s heart-on-sleeve Barry, villains of the week, Reverse-Flash timeline headaches. Arrowverse found family in a Cortex. TV Flash files her…
- Carlos Valdes as Cisco Ramon
Carlos Valdes played Cisco Ramon on The Flash — STAR Labs found-family engineer, vibe as a later superpower, the joke that kept Grant Gustin's sincere speedster hour from becoming only a frown in a suit. Villains of the week, timeline…
- Tom Cavanagh as Harrison Wells
Tom Cavanagh multiplied The Flash as Harrison Wells — STAR Labs found family, Reverse-Flash timeline headaches, superspeed sincerity as the Arrowverse's heart-on-sleeve counter-argument. Villains of the week plus season-long speedster…
- Jesse L. Martin as Joe West
Jesse L. Martin’s Ed Green is Law & Order as the partner who made the dun-dun feel like a city again — ripped-from-headlines modular television with a badge that photographed as heat, not paperwork. Dick Wolf’s empire runs on cast churn.…