<Tr> <Th> 73 </Th> <Td> </Td> <Td> "Elongated Journey Into Night" </Td> <Td> Tom Cavanagh </Td> <Td> Sterling Gates & Thomas Pound </Td> <Td> October 31, 2017 (2017 - 10 - 31) </Td> <Td> T27. 13404 </Td> <Td> 1.99 </Td> </Tr> <Tr> <Td_colspan="8"> Gypsy's father, Breacher, attacks Cisco, vowing to hunt and kill him in 24 hours, allowing the romance should he survive . Team Flash learns that the bus driver was murdered and tracks down another passenger, Ralph Dibny, former corrupt CCPD detective exposed by Barry and currently an infamous private investigator . As two thugs attack Dibny, he is revealed to have the power to stretch . Caitlin stabilizes his powers with a serum . The team learns that Ralph has been blackmailing Mayor Bellows for adultery, with the latter revealed to have hired the thugs . Barry confronts Ralph for his actions while the latter scolds him, claiming to have been a "good cop". He later stops blackmailing Bellows, who still attempts to kill him while Breacher mistakes the former for a Plastoid, the species that invaded Earth - 19 previously, and attacks him . Cisco intervenes and saves Ralph, whom Barry, having revealed his alter - ego, convinces to help arrest an escaping Bellows . Admiring Cisco's gallantry, Breacher allows the relationship . Barry recruits Ralph for Team Flash and learns that someone named DeVoe instructed Ralph to watch Bellows . Barry remembers that Abra Kadabra and Savitar both mentioned DeVoe . Meanwhile, Caitlin finds a message on her apartment door . </Td> </Tr> <Tr> <Th> 74 </Th> <Td> 5 </Td> <Td> "Girls Night Out" </Td> <Td> Laura Belsey </Td> <Td> Lauren Certo & Kristen Kim </Td> <Td> November 7, 2017 (2017 - 11 - 07) </Td> <Td> T27. 13405 </Td> <Td> 2.38 </Td> </Tr> <Tr> <Td_colspan="8"> While failing to track DeVoe, Team Flash is visited by Felicity, who joins Iris's bachelorette party . Mocking Cisco's plans for Barry's bachelor party, Ralph takes the men to a strip club, where they learn that Cecile's daughter, Joanie, is working . Joe confronts her, who states she is only doing feminist research . Ralph incites a brawl, leading to the men's arrest until Harry posts bail . Meanwhile, Amunet's enforcer, Norvock, demands Caitlin's return and attacks the women when she refuses . Killer Frost emerges and repels him, later telling Iris that Caitlin accepted Amunet's employment in exchange for the means to control Frost . Learning that Amunet is holding a metahuman she calls "the Weeper", whose tears are a strong narcotic, prisoner and intends to sell him, Iris's party decides to stop her . Though Caitlin refuses to join, she attacks Amunet when seeing her friends in danger . Using a strong magnet, the team robs Amunet's metal shards, leaving her powerless . Iris dissuades Frost from killing Amunet, who promises revenge . Both parties refuse to tell each other about their adventures . Iris asks Caitlin to be her maid of honor while Joe convinces Joanie to tell Cecile about her research . DeVoe captures the Weeper . </Td> </Tr>

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