Cisco completes the construction of a drug for meta-humans, but you will be able to use it for only 29 days, Sherloque comes up with the idea to take a sample of the drug to Speed Force, Flash immediately sets off.
Cicada arrives at Iris's office, which he attacks and detains, while Cisco arrives on an appointment with Kamil Hwang.
XS together with Killer Frost move to help Iris, when Caitlin gets hurt, Nora goes back in time, saving her mother and friend.
Sherloque breaks into the office of Iris, where he is attacked by Cicad, XS appears to help but finds the wounded Cisco, again decides to go back in time.
Nora tells everyone to stay in Star Labs for an hour until Flash comes back, the Cecille alarm that Cicada takes unexpectedly starts, and XS goes back in time.
Iris guesses that her daughter is going back in time, she admits that she has gone back 52 times but every time someone dies and Cicada wins.
Sherloque comes up with the idea of how to defeat Cicad, Iris meets him on the roof, calling his friends, XS, by retreating in time, pushes the enemy on his own dagger, but manages to escape.
Barry returns with Speed Force.
In 2049, Nora talks to Eobard Thawne.
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