Chapter 1

Clarke time travels and ends up in Australia 2 years before the start of FTWD and becomes Elyza Lex after faking memory loss. She's paranoid and tough because she remembers. After a while, she goes to America to see what the world she once knew looks like in this universe/timeline, and she gets stuck there in the apocalypse. She meets Alicia there, who seems to not remember her at all...but does she really not?
Raven x Magna later on.