Justin erupts in a fit of rage, after the breakdown of his andTiffany's relationship, that sets off a chain of events thatwill change the family's lives forever. Hector tries pushingSue forward with their relationship, but she makes it clearshe needs some space. George Windsor makes a unexpected returnto the school dance, with some interesting information.
Leo attempts to help a mysterious new girl at school but soonrealises that there’s a lot more to her than he thought. Sueattempts to stop Simon finding out about her affair but Hectorhas other ideas.
Justin comes up with a plan to keep him and Tiffany togetherDespite their parents’ objections. Rhiannon becomes a plussize model. Hector attempts to convince Sue to leave Simon.
Callie and Jude have very different experiences as they spendtheir first Christmas with the Fosters. Stef has a problem withGrandma Sharon and her excessive gift giving.
The results of this week's public vote is revealed. The new“wildcard” gives the past nine most recently eliminatedartists the chance to perform one last time as they battle itout for the public's vote to bring them back into thecompetition and one artist will return for the Live Finals.
Barry finds himself face-to-face with his nemesis, the man inthe yellow suit, a.k.a. Reverse Flash, who killed his mother.Barry is frustrated when the Reverse Flash escapes, but Dr.Wells and Cisco come up with a plan to trap him. All they needis bait, so they turn to Dr. Tina McGee from Mercury Labs tohelp. Meanwhile, it's Christmas at the West household and Irisis in full holiday cheer. Eddie gives her a surprising gift butalso leaves her with a question that could change her life. Joejoins the search for the man in yellow and ends up in thecrossfire. Caitlin finds Ronnie.
Barry is thrilled when Oliver, Felicity, and Diggle come toCentral City to investigate a case involving a deadlyboomerang. Excited about teaming up with his friend, Barryasks Oliver if he'd like to help him stop Ray Bivolo, themeta-human Barry is currently tracking. Bivolo causes people tolose control of their emotions and has been using that skill torob banks. Unfortunately, the superhero partnership doesn't goas smoothly as Barry expected. When Oliver tells Barry he stillhas a lot to learn, Barry sets out to prove him wrong byattempting to stop Bivolo alone. However, when Bivolo infectsBarry and sets him on a rage rampage, everyone is in danger,and the only one who can stop him is the Arrow. Meanwhile,Iris is furious when Eddie tries to get a task force to stopThe Flash, Joe and Dr. Wells agree the Arrow is a badinfluence on Barry, and Caitlin and Cisco deal with a new teamin S.T.A.R. Labs.
Julie goes to stay with Bess after arguing with her family.Margaret works out that the only way to get her out is to makethe rest of the Wheelers bring her home.