Its Christmas season- Barry, Wally, and Laurel who lives with them now are decorating the house, Eddie and Iris are enjoying their second Christmas as a married couple, and Cisco, Caitlin, and Henry are at Star Labs.
Later that day the meta human app rings and when Cisco calls Barry, he heads to Infantino Street, where he sees Captain Cold and Heatwave walking out of a burning bank. Barry is shocked, he knows Snart is dead, Ray told him that when the dominators attacked and that was after he created Flashpoint, how can someone who's dead, be here exactly?
Cisco (on comms): Barry what is it?
Barry: I don't get it how? Snart and Rory, we just saw Rory with the Legends and Snart is dead, how is this possible.
When Snart notices Barry, he shoots him, Barry quickly phases through the ice, and tricks them into crossing their streams like he did two years ago, and they are taken to Iron Heights Prison afterwards.
Barry returns to Star Labs surprised that he fought Snart and Rory.
Cisco: What do you mean you saw them?
Barry: Listen I know what I saw, it was them, same guns same attitude, same everything.
Caitlin turns on Channel 52, and it says they were just captured. Barry doesn't understand how they could possibly be alive.
Caitlin: Maybe another Earth?
Barry: No its not possible I've seen doppelgängers a lot before, if they were from another Earth they would be different from our versions.
Suddenly they hear footsteps running into Star Labs, and when the figure comes into the cortex, its Leonard Snart himself.
Cisco: Snart?
Snart: My my my, how the mighty have fallen.
Barry: How are you here?
Snart: I could tell you the same thing. Listen I got no time for this little chit chat, but a little birdie told me you would like to stop us, there is going to be no more stopping us Flash, stay off while I stay at Iron Heights. Remember, you pull another trick like this again and your little Caitlin will be handed over to CCPD for her Killer Frost and this entire laboratory outed including your identity as The Flash.
Snart walks away with the team confused, Laurel, Eddie, Iris, and Wally walk in, they're confused on what they read on the news of Snart being here, except Laurel as she does not have much experience with him.
Iris: Guys Snart and Rory are back?
Barry: Yeah I don't get how.
Laurel: Sounds like a Malcolm kind of move, look guys anyways it's Christmas. Cisco has the meta human app, lets celebrate our time together while its here.
Henry: Actually Ms. Lance first I need to say something to you all.
Barry: What is it Dad?
Henry: Cecile and I decided to go off on a long trip to celebrate our engagement, so I won't be back for a while.
Everyone greets Henry, who then exits Star Labs. Barry, Wally, Laurel, Iris, Eddie, Cisco, and Caitlin all then head together to the West Household to celebrate Christmas, and later the doorbell rings. Barry goes to open and comes through is Jesse Quick who invites them all for Dinner for New Year's Eve on Earth 2, Eddie and Iris decide to stay on Earth 1 however everyone else agree to go.
A few days later at Earth 2 Jitters, Barry, Laurel, Wally, Jesse, Cisco, and Caitlin are all hanging out. At 11:59, everyone begins counting down.
Everyone: 10! 9! 8! 7! 6! 5! 4! 3! 2! 1! 0! HAPPY NEW YEARS!
They hear fireworks outside so they walk out, and all watch together.
The next morning, Barry, Laurel, Wally, Jesse, Cisco, and Caitlin are sleeping in Star Labs at a giant Bedroom Harry had put in.
Jesse is the first one to wake up, she uses her powers to get ready quickly, then she goes out for a walk outside Star Labs. The sun and the sky is so beautiful she thinks, her hope is to one day really embrace it, she goes to the park and does some Yoga while the sun rises. Suddenly, she gets a major headache and is knocked out, however not before seeing Gorilla Grodd carrying her father and putting in her brain a message to find him in Gorilla City.
Jesse wakes up a few minutes later freaking out. She quickly takes her yoga mat and speeds back to Star Labs, she gently tries to wake up Barry to tell him, however when he does he tells her to stay at Star Labs and takes Laurel, Cisco, and Caitlin with him.