As Wells once again gets the upper hand on the S.T.A.R. Labsteam, Barry realizes he needs to make a big move and reachesout to an old foe, Captain Cold, for help. Joe and Caitlinwarn Barry that Cold can't be trusted. True to form, Cold hashis own agenda that involves the meta-humans trapped in thecontainment cells. As things seem to be going from bad toworse, The Flash gets reinforcements--Arrow and Firestorm.
Four new All-Stars (Cat Cora, Antonia Lofaso, MichaelPsilakis and Marcel Vigneron) strut into the Chopped Kitchen,sights set on the Grand Finale. In the first round, a specialSpanish meat must be paired with an airy cookie. The chefs whomake it to the second round face a huge ingredient to butcherand some tiny, sour fruits to tame. Flavored water andclarified butter are part of the culinary puzzle that the finaltwo chefs have to solve in their desserts.
Lt. Casey puts his life on the line and digs deeper into theshady dealings of Jack Nesbitt. With members of truck and squadat odds over Rice's actions in the field, Chief Boden is leftto figure out how to create unity in a divided house, whileSeveride comes to question his own judgment. A dangerouswarehouse blaze quickly gets out of control and threatensmembers of firehouse 51, prompting Boden and Cruz to riskeverything to save their own. Elsewhere, Dawson gets somelife-changing news.
Beth must make a tough decision about her future with theLAPD, while the TAU team investigates a suspect who could belinked to a string of recent murders. Also, Vicky'sex-husband, Will, surprises her at work, prompting her toreveal to Beth the real reason she returned to Los Angeles.
With time running out, Klaus' ultimate plan to protect babyHope at all costs continues to take shape. As tensions betweenthe siblings come to a head, Cami reveals a vital piece ofinformation that causes Elijah and Rebekah to reconsider theirplan of attack against Dahlia. Davina finds herself one stepcloser to fulfilling the promise she made to Kol, while Freyais forced to take drastic measures to protect herself againstDahlia. Elsewhere, Marcel has to put aside his fury at Klausin order to protect himself and everyone in their sire line.Meanwhile, Vincent finds himself torn between the prospects ofa magic-free life away from New Orleans and a personalobligation to protect Davina. Finally, with their risky planin place, the Mikaelson siblings prepare for the fight oftheir lives.
Drew and Paul head to the scene of a multi-car collision. Paultakes a chance on a daring rescue and sustains injuries thatcould jeopardize his dreams to be a surgeon. Back at the ER,the newly-anointed Dr. Ragosa along with Jordan, Scott,Krista and Kenny, manage the deluge of incoming victims. Theysoon discover the disturbing cause of the accident. Meanwhile,TC and Topher head into a war zone to treat an old friend whois in desperate need of sophisticated medical attention. As thedanger grows more intense, both TC and Topher reflect on theirdecision to risk their lives.