Warning: This story contains major spoilers from Tuesdays episode ofThe Flash.
Read at your own risk!
Jay Garrick wasnt the only new face in Central City during Tuesdays episode ofThe Flash.

Credit: Cate Cameron/The CW
But their celebration is cut short when Professor Stein (Victor Garber) suddenly collapses.
Meanwhile, a peek at Earth-Two reveals a tour group at S.T.A.R.
Labs getting the rare chance to meet its founder,Harrison Wells (Tom Cavanagh)!
For one, he wasnt replaced by Eobard Thawne, so were finally getting insight into the real man.
Its one of the more interesting challenges that we couldve presented an actor, Kreisberg says.
Play the same character, but were giving him a completely different backstory.
But dont expect to spend a great deal of time with him.
Since we introduce Earth-Two, theres always a possibility well go there, Aaron Helbing says.
Not necessarily early on, but youll see more of it.
West family drama:Wells wasnt the only character who made a surprise return.
Iris obviously has this conception about her mother and her being away from her her whole life.
Thats the jumping off point shes going to be struggling with.
Victors fiery new dilemma:Crossover alert: This is a big setup forDCs Legends of Tomorrow.
Thats going to start to sneak up on him.
Ciscos new powers:With Stein otherwise occupied, Cisco is dealing with his new powers on his own.
Suffice it to say, Cisco doesnt have a great handle on it.
The way these powers are presenting themselves, I wouldnt say that theyre fun, Kreisberg says.
Thats really scaring Cisco.
He works at a place where they lock up bad metahumans.
The gift that his powers are is not readily apparent to him.
Hes only seen the bad and the darkness in them.
Its not good for them, Todd Helbing says.
But they figure out a way to control it.
[There are] 52 breaches and Zoom can come through any of them with whoever he wants.
They have to figure out quickly how to manage the biggest threat to them.
Also, Zoom has a very specific reason why he is not trying to kill Barry himself.
Zoom is just your worst nightmare, Todd Helbing says.
Hes the scariest speedster on the planet.
Theyre going to explore that a little bit.
Jay and Caitlin are part of this bigger team at S.T.A.R.
Labs and theyre going to have a series of interactions were going to explore a little bit.
This blossoming relationship adds a new complication this season.
Youll see how that develops.
Iris and Barry are childhood friends and loves.
Thats always going to be there for both of them.
The Flashairs Tuesdays at 8 p.m.
ET on The CW.