Main character Bella is on Flashes earth lived most of her adult life there but when her sister from their home planet comes hunting her. She's flees to supergirls earth leaving behind all her friends and her boyfriend Zack or Fang who she was on the rocks with at the time on Flashes earth. Once there she meets Alex and Kara. With Kara injured the only thing that could help was back on Bella's home planet, she goes with Clark to retrieve it while there she runs in with her sister. Finally makes it back to supergirl in time! With a guest who she's very happy to see. When she arrives there she sees Zack and kinda ices him out. Can their love be repaired and will it be enough to stop Bella's sister?
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