Castaways must keep their heads above water in the immunitychallenge to be guaranteed a spot in the final six. Then, it'sa mad dash before tribal council as castaways must decide whoto target.
Iris is alarmed by Barry's disappearance and Cecile assures hereverything will be ok, but does she know that for certain?Team Flash is affected by a mysterious substance and Khionedevelops a better understanding of what she can and cannotcontrol.
Maggie clashes with Charles over a patient who is distrustfulof hospitals. Marcel and Halstead fight against Med's newpolicies to save their cancer patient. Asher and Archer pullsurprising things out of their unsuspecting patients.
Fearing that Betty is going down the wrong path, Alice forcesher to join the after-school dance show, "AmericanGrandstand." Meanwhile, Kevin is forced by Tom to join theRiverdale High basketball team, and Veronica finds herself cutoff by her parents.
Herrmann works on becoming a better man after Cindy's cancerjourney. Kidd bonds with a homeless victim on a call. Kylietakes her firefighter exams. A harrowing call takes a toll onBrett.
Celebrity contestants go head-to-head for charity in theUltimate Host Night with Vanna White (St. Jude Children'sResearch Hospital), Ken Jennings (Equal Justice Initiative)and Mayim Bialik (Mental Wealth Alliance). Pat Sajak hosts.
When an ex-Omega Sector operative asks the team to help stopthe sale of weaponized uranium, Harry finds himself strugglingto reconcile his loyalty between his current team and hisformer comrade, who continually demonstrates somequestionable, yet effective, tactics.
Upton is unwittingly drawn into a deadly betrayal and findsherself in a fight for her life. With minimal leads, Voightand the team scramble to find her before it's too late.