<Tr> <Th> 47 </Th> <Td> </Td> <Td> "Flashpoint" </Td> <Td> Jesse Warn </Td> <Td> Story by: Greg Berlanti & Andrew Kreisberg Teleplay by: Andrew Kreisberg & Brooke Roberts </Td> <Td> October 4, 2016 (2016 - 10 - 04) </Td> <Td> T27. 13101 </Td> <Td> 3.17 </Td> </Tr> <Tr> <Td_colspan="8"> After preventing the murder of Nora Allen, Barry returns with Eobard Thawne to the present and imprisons him in a cage that dampens his speed . In the new timeline, which Thawne dubs "Flashpoint", both of Barry's parents are alive; Joe has a poor relationship with Wally and Iris and is chronically in trouble at work; Cisco is a billionaire tech magnate; and Caitlin is a pediatric ophthalmologist . There is also a new Flash in Central City called Kid Flash struggling with his own nemesis, Edward Clariss, known as "The Rival". Barry begins losing his memories of the original timeline due to the new timeline becoming permanent . After discovering Kid Flash is Wally, Barry teams up with him and stops Clariss, but Wally is critically injured in the process . Realizing that the new timeline is worse for those closest to him, Barry is forced to let Thawne return to the past and kill Nora, resetting the timeline and restoring Barry's memories . Back in the present, Barry learns to his horror that the timeline did not reset exactly and Joe and Iris do not talk to each other anymore . Meanwhile, Clariss is confronted by a mysterious voice and finds the message "Alchemy" being scratched into his mirror by an invisible force . </Td> </Tr> <Tr> <Th> 48 </Th> <Td> </Td> <Td> "Paradox" </Td> <Td> Ralph Hemecker </Td> <Td> Aaron Helbing & Todd Helbing </Td> <Td> October 11, 2016 (2016 - 10 - 11) </Td> <Td> T27. 13102 </Td> <Td> 2.80 </Td> </Tr> <Tr> <Td_colspan="8"> Barry learns of multiple changes to the timeline: Iris has not forgiven Joe for concealing that her mother was alive, Cisco is angry with him for not altering the timeline to save his brother Dante from being killed, and he has a new CSI partner, Julian Albert, who does not like or trust him . Barry decides to travel back to fix the damage, but he is intercepted by Jay Garrick . Jay tells Barry that the timeline never resets exactly and he has to learn to live with his mistakes . Meanwhile, Clariss has visions of "Flashpoint" and locates the person responsible, Alchemy, who restores Clariss' powers and full "Flashpoint" memories . Barry tells the team about the timeline's alterations before confronting Clariss at an abandoned warehouse . Alchemy is there as well, saying that he is preparing for a future event . Cisco arrives and helps Barry defeat Clariss, who is then incarcerated in Iron Heights . The team determines Alchemy is creating other metahumans from "Flashpoint" whom they need to track down . Cisco and Barry reconcile, as do Iris and Joe . Caitlin is secretly revealed to have gained cryokinetic powers . Barry and Iris begin dating, while Clariss is confronted by the voice of Alchemy for his failure before being killed inside his cell by an unidentified metallic being . </Td> </Tr>

The flash season 1 episode 24 full episode