After a brutal shooting, Burgess and Ruzek find themselves trapped aboard the busy "L" subway. As they piece together scant evidence, the team is drawn into a dark family drama.
The ladies treat Maggie to one last hurrah before the baby’s arrival, and the guys attend a Bruins game for the last time. Meanwhile, Eddie toys with the idea of going back to college and Rome anxiously awaits news about his father.
After a month of seeing one another and some preconceived notions, Adam and Carmen discuss the status of their relationship; an old friend of Erica's visits town.
The Abbott staff heads to the Pennsylvania Educational Conference. Gregory reluctantly attends after a disagreement with Amber and bonds with Janine over their similarities. Jacob finds himself charmed by the Addington teachers.
Nell’s friends rally to set her up on some dates, but Nell isn’t sure she’s ready to move on. Edward has better luck finding a match.
Franklin fights to keep his business afloat. Jerome and Louie strike back.
Cissy introduces Franklin to the KGB, while also trying to broker peace within the family. Veronique enlists outside help to track Franklin's money.
The final group of remaining recruits attempt to go behind enemy lines without being captured, and face tough lessons of survival, leadership and how to decipher a map.
Lala drops a bombshell on Raquel that shakes the foundation of their newfound friendship; Sandoval takes some time away from the bar to play rock star with his cover band; Ariana and Katie take the next step in opening their sandwich shop.
After midterms, the crew looks for new ways to alleviate their stress and decides to give mushrooms a try. Aaron gets roped into a faculty karaoke night and surprisingly learns some things about himself.
In Minnesota, Jeremy and his team take on their worst-smelling vehicle yet--a Mercury Cougar filled with over 15 years of cat pee. Then, in North Carolina a Toyota 4-Runner covered in dog hair finally gets groomed.
Amber reveals a secret, Johnny, Ravyn and Nurys discuss their love triangle, and Olivia shares the severity of her facial injury.
With time running out, Nicky is forced to confront Bo to get information on Xiao's whereabouts before it's too late. Mei-Li clashes with Carrie at Harmony Dumplings, and Jin makes a surprising decision that could affect the outcome of the election.
Mamma Mia - it's ABBA night on The Masked Singer! This week's episode is full of pop rock and disco nostalgia, as the reigning champ takes on two new celebrity singers, each performing iconic songs - including "Dancing Queen," "Fernando" and S.O.S." - from the one and only Swedish supergroup, ABBA.
An electrical contractor sues for the 10K court maximum for negative online business reviews that he claims hurt his business; he is countersued for 10K for allegedly filing a frivoulous lawsuit.
When their psyches are put to the test by hallucinations, the crew must race to find the cause.
An annoying floater takes a romantic interest in Violet. Ritter catches a local politician in a compromising position. Mouch and Severide help Trudy with an arson investigation.
Goodwin and Charles clash as negotiations drag on between the administration and the custodial workers' union. Asher fights to keep a mother and her newborn baby together.
Barry and Iris start to put together the pieces of what's happening in Central City and believe they know what the Rogues are after. Team Flash works together and recruits some unlikely allies to help, and the plan does not go as Team Flash expects. Meanwhile, Allegra does her best to avoid having a conversation with Chester.