Barry has an encounter with a hero from an alternate world.

The Singularity caused problems for more than just Barry. From another universe, Zoom brings new players to defeat Flash. Unknown to Flash or Zoom, more than just humans arrived. Kara Danvers meet Barry Allen. Super girl meet Flash.

After the death of Felicity Smoak a guilt ridden Barry runs off to see Kara who is an old friend but also the sister of his ex-girlfriend: Alex Danvers, Will Kara help him rid the guilt and will his feelings for Alex return when he see's her again.

Alex Danvers spent most of her childhood taking care of Kara, Barry spent most of his pining over his best friend and thinking of his dad in prison. When college life hits them. Will they force everything out or finally start to live their lives. In "We could be Heroes" verse. And continuing the song lyric titles :)

Barry takes a trip to National City after Oliver suggests it to determine if whether or not Supergirl is a threat.

(Karry pairing) Kara/Supergirl had been angry as hell recently, everyone thought Cat was getting to her but they were wrong, after losing her Love Barry Allen she has become distant until a friend of Barry's tells her the location of the pit. will Kara put Barry in the pit and if she does what will come out?

(Part 2 of the New World series) (Kara/Barry) As the guest of the Ball Barry makes a discovery which makes him happier than he had been for 5 years, and then he see's Kara in her dress his heart skips a beat unknown to them all that Zod is about to make his move with the abomination he has resurrected from Jor-El's old project.

(Alternative Universe so I hope you enjoy) (part 1) 5years after the war with the Kryptonian's leaves humanity near extinction, Barry Allen is all that is left from the old world... how will he survive when even Kal El the only Kryptonian who sided with the resistance was executed with his human Love Lois lane.