When a version of Harrison's dead wife arrives from a parallel reality, Harrison doesn't really know if meeting her would be a good idea. It could bring closure... or an upset that Harrison isn't ready to weather. And then Eobard Thawne returns and Harrison knows, without a doubt, that nothing can shake his desire for a future with Tina and Jerry and their children in it. (S2 AU)

Harry expected - hoped - he'd find allies on the other Earth beyond the breach. And he did. He wasn't, however, expecting to find love. If love is a person's true north, it seems that these days Harry's internal compass points in several directions. (Season 2 AU)

Barry and Caitlin arrive at the train station to welcome a few friends back to Central City. But the happy reunion contains hints of the strife to come. The future has already changed. But it'll take time before the past catches up. (Armageddon/season 8 AU)

Iris follows Barry up to his lab late one evening in December, after a purse snatcher ruins her attempt to tell Barry how she feels, and that's the last thing either of them remember for the next nine months.

Hartley has learned through life repeatedly not turning out how he wants that 'perfect' is more pipe dream than reality. Wait for the perfect moment too long and life will pass a person by. But it seems maybe Caitlin Snow hasn't quite figured that one out yet. (Pre-show AU and pre-relationship for Hartley/Cisco)

After Nick's death, Helen decides to seek comfort in the arms of Steven Hart. A step through the right anomaly at the right time is all it takes for Helen to have a blast in the past, after all. Of course, one should always be wary of changing the past. (Start of a fix-it series.)

Hartley's health hasn't been the greatest lately and he comes back from a week off to find a new guy on his project who is most definitely not a senior level mechanical engineer with several years of experience like Hartley'd asked Harrison to hire. But it turns out Cisco Ramon is absolutely the guy Hartley wants around when an already bad day winds up going straight to hell.

FN-2187 was dead. A traitor who murdered his fellow troopers before getting killed alongside a rebel. The official story, anyway. (TFA AU - Finn starts a revolution, largely by being himself.)

(Season 1 AU - Mark raised Joss) Nine months ago, Mark got the news his brother died in a shootout with the cops that ended with one dead detective (shot by Clyde), one crashed plane (struck by lightning with Clyde inside), and Clyde dead in the crash. He's devastated, but at least it should mean he and Joss are safe from Clyde now. The only problem is Clyde isn't really dead.

There isn't going to be a wedding. Iris is twenty-six today, her fiancé is dead, and there isn't going to be a wedding. (Post Season 1)

Iris has a bit of an emergency going on. She has a date for Valentines Day, with the prettiest girl in her school year. And she has no idea what to wear. Of course, she can always rely on Barry to help her figure these things out. (Pre-Canon; one-sided Barry/Iris; background Iris/OC)

Maybe it started when Barry stole Mick from the Legends. Or it could have been when Eobard remembered that Captain Cold had been renowned in the original timeline as a brilliant strategist who regularly got one over on the Flash. Whenever it started, what matters is that it came together when Leonard Snart from 2014 showed up in Central City 2017 to find Mick busy with the Flash.

(Character Study; one-sided crush) Brianna runs away with the Jedi Exile. Excuses that she's just doing her duty as a Handmaiden aside, maybe somewhere in there she can learn that wanting happiness for herself isn't necessarily a bad thing.

Having accepted Walter's marriage proposal, Moira finds a way to show Tommy that, as far as she's concerned, he's been a part of the family for a long time. (Pre-series)

(Armageddon AU) Caitlin's been dealing with a lot lately, what with Eobard and Iris' engagement bringing up her memories of her marriage to Ronnie. So while it's never a good time to hear someone Caitlin considers a friend going off on an amatonormative, arophobic screed... this is especially not a good time for it. (demiromantic Caitlin; aromantic Ryan Choi; Ryan Chester QPR)

Kendra Saunders dreams of flying on her own. But the thing is, it has to be her choice. (Season 2 AU)

Barry was supposed to make it home for Valentine's Day, but bad weather delays his plane. Caitlin tells herself she isn't upset by this but, well, that'd be a lie. She knows Barry's just as upset; he hates to miss a chance to make a romantic gesture. (Alternate Universe - No Powers)

The first rose is waiting for Cisco when he gets home from work, tucked into the handle of his front door.

Oliver finally takes that weekend visit to Central City. Or, more specifically, to visit Barry Allen, hot CSI. (Alternate Universe - Alt Arrow Season 2 & Alt Pre-Series Flash)

(Set in the Earth Prime Timeline) "I'm sorry for your loss." For a moment Tommy sees red. He can't breathe, he can't think, he can't... how dare he. "If you were sorry, then you wouldn't be helping the man who murdered my wife," Tommy said, voice tight with barely controlled anger. "And if you cared about anyone other than yourself, you wouldn't have helped him do it."