Team Flash is busy getting Star Labs into Christmas mode while making plans for the holiday. Over at Barry and Iris's place, the newlywed couple is unpacking wedding gifts from their friends.
At the Devoes, Clifford's condition is starting to get worse. Harry goes to have a drink with Caitlin at Jitters. Amunet Black crashes the place as she has unfinished business with Caitlin.
Elsewhere, The Thinker goes after Barry. While Killer Frost takes on Amunet, the Thinker kidnaps Flash.
Iris regroups with the others at Star Labs as she finds out that Caitlin clashed with Amunet. Cisco tries to vibe where Barry is but for some reason his powers attack him.
Barry wakes up inside DeVoe's secret lair and can't get out. Caitlin is at Amunet's place as she wants her to save a new metahuman that she plans on selling.
DeVoe joins Barry as he welcomes him to the lair. Caitlin introduces herself to Dominic who begs her for help. Barry asks DeVoe what he needs him for as he could have killed him back on the street.
Joe arrives at the DeVoe house as he is looking for Barry and DeVoe goes upstairs. DeVoe goes to greet him and Joe confronts DeVoe about Barry being missing.
DeVoe toys with Joe and Harry as he refuses to give Barry up. Barry continues to try and get out while Marlize tells him that there is no point.
Barry asks why she is going along with her husband's plans. At Star Labs, Cisco gives Ralph a piece of his mind about his inappropriate behavior.
Harry gives Iris a little advice on team leadership. Dominic asks Caitlin who Killer Frost is as Caitlin explains how her powers work.
As she can't help his injury from here, they try to escape the place. Amunet quickly catches up with them. She pulls Caitlin to the side and tries to reason with her.
Amunet begins to tell Caitlin how she got her powers and order Caitlin to get back to work. Ralph tries to find Barry and Caitlin as Cisco comes up to him and apologizes for yelling at him.
Ralph tells him that he was right about him and that he behaves this way because he hasn't had friends in a while. Iris shows up and tells them that they are going to focus on looking for Caitlin.
Caitlin begins the procedure on Dominic to fix his injury. Dominic begins to go into shock and Caitlin tries to save him.
Amunet suddenly passes out as it was part of their plan to knock her out. They try to escape as Amunet catches up while Team Flash shows up to stop her.
DeVoe goes to see Barry who somehow found a way to escape the cube. They begin to fight as DeVoe uses his technology to zap them into the city.
Barry manages to get DeVoe to attack his own chair as they both crash into the water. Barry returns to Star Labs where Iris is waiting for him.
The next day, they are still searching for DeVoe as he and his wife have not been seen since last night. They decide to try and celebrate Christmas.as Ralph decorates Joe's house for them as an apology.
Barry gets an alarm at his loft and runs off to see what's going on. He gets a call from Dominic who reveals that he is actually DeVoe.
It is revealed that Amunet's buyer was the DeVoes as Clifford used his technology to plays his mind within Dominic's. Dominic reveals that he also left DeVoe's old body at Barry's loft to frame him for the death of Clifford.
The CCPD arrives and Barry decides to not run as he gets arrested for the murder of Clifford DeVoe.