Wally, Julian, and Cisco look like they're just arriving at the lab. They probably didn't expect to find a certain potential villain waiting for them at work.
It can't be easy for Wally to know there's not much he can do to save Iris. Even at his fastest, he wasn't fast enough. But we don't see Kid Flash backing down any time soon.
Has Caitlin come to her senses? Or does Killer Frost have another reason for popping into STAR labs? We're guessing Wally and Julian have as many questions as we do.
We're worried about Cisco. He's having a hard time with the Killer Frost situation. Now, whatever he sees on the screen is upsetting him. Will he ever catch a break?
What's making Julian and the others so tense? Is it what they're seeing on the monitors? Or is it the fact that Killer Frost is casually lurking in the background?
Barry and Wally have come a long way as teammates since Wally first donned the costume. Now all they have to do is look at each other to know what the other is thinking.
Waiting around is the hardest part for anyone. Barry and Wally are both suited up. Are they on a mission with Joe working on a new case? Or have they found a way to save Iris?
Kara and Barry weren't the only ones Music Meister wanted to "help". After his time in the Speed Force, Wally needed an extra push to get Kid Flash back in the game. He found it when it came to stopping the baddie.
Ramsey: You know, I don't understand you Barry. You march towards death without fear, just like mum. Where is it you get your strength? Barry: Probably the same place she did, people I love.
