Ralph intercepts the mirror gun blast, saving the dagger, which Cicada then reclaims before escaping. After Thawne's plan is explained, Nora realizes she has been played and comes up with a plan to eliminate Cicada without destroying the dagger. The team tracks Cicada to her younger self where Nora enters her mind, and with help from a reformed Orlin successfully convinces her to take the metahuman cure. However, the dark matter from the dagger, counteracts the cure, forcing Barry to destroy it with the mirror gun, resulting in the adult Grace being erased while in 2049 Thawne regains his powers. The entire team confronts and fights Thawne with Barry and Nora finally subduing him, and the new daggerless timeline threatens to erase Nora. Thawne escapes after revealing the only way to save her is for her to enter the negative speed force, however, Nora refuses to enter the negative speedforce because she doesn’t want to become like Thawne. Tearfully, Nora embraces her parents and is erased from existence. Later, Sherloque returns to his Earth while Cisco takes the metahuman cure. Captain Singh gets promoted and names Joe his replacement, while also revealing he knows Barry is the Flash. Meanwhile, Barry and Iris discover a farewell message from Nora. Finally, as the new timeline sets in, the date of the crisis in the future newspaper changes from 2024 to 2019.