Brian takes a friend out for ice cream; Sam is one week away from retirement.
Ten years after Popcorn Sutton's death, his widow reveals a clue that could lead Mark and Digger to a hidden stash. Mike must gin up his brandy game to pay off his debt to Mark and Digger. Donnie and Teresa build a secret still in a Kentucky cave.
Jimmy challenges Gretchen to tackle some of the responsibilities that come with being an adult.
While chasing a heroin supplier, CPD crosses paths with a convicted criminal recently released on a technicality. Halstead's history with the man threatens the team's ability to put him back in prison.
Beverly decides their street needs another stop sign and pleads her case to the city comptroller. Barry panics when he realizes he's neglected his college applications, but the situation only gets worse once Murray is involved. Meanwhile, Erica struggles with her career choice.
Teenagers find a woman's corpse while attending a party on the outskirts of the city; detectives quickly determine that the victim was strangled with her own shoelace, but they struggle to identify her.
Nev and NFL star Rashad Jennings help Deven find his mysterious online love, James; James won't videochat yet he invites Deven to fly across the country to meet him; hopeful for love but prepared for a trap, Deven needs answers.
International All Stars create outerwear from underwear by transforming corsets into runway looks; Rebecca Minkoff and Olivia Culpo guest judge.
In 1985, Will Sanders questions why the Red Cross may still be distributing tainted blood when safe heat-treated product is available. Margaret Sanders battles the prejudice surrounding AIDS. Lawrence Hartley and Paul Kirpatrick, both infected hemophiliacs, lead the charge for victims, while waiting on HIV test results for their wives. Peter Landry spirals out of control to Ben and Alice's dismay.
Scientists and amateurs conduct experiments and post their exploits online. Each episode counts down 20 popular Internet videos and explains the science behind them.
Forty-year-old Rachael Anderson disappears without a trace after calling a friend about a home improvement project she'll never complete.
Danny, a young aspiring puppeteer, tries his best to romance Courtney with a bike ride and puppet show. Meanwhile, Ross gets down and dirty in the ring with boss babe Alex.
Three-year-old Nikola Szlezyngier disappears in unexplained circumstances and her parents Angelika and Dawid are the main suspects. Angelika contacts an old friend Joanna Chylka, a brilliant, cynical and successful lawyer to help. With her new apprentice Kordian, Joanna will try to bring the case to a happy close.
Olympic gold-medal winning decathlete Daley Thompson pays a visit to Yianni Charalambous to ask him to create a special wrap for his McLaren super-car.
A 16-year-old A-Level student asks Yianni Charalambous to create a new colour scheme for her white Volkswagen Beetle - which she is not yet old enough to legally drive.
In episode four, Bradley and Barney travel to New Orleans in Louisiana, the fourth and final US State of their trip. Sitting on the mighty Mississippi, New Orleans is known for its vibrant nightlife, live music and laidback attitude. Bradley and Barney drive across the border in their RV and head straight for the city’s most famous mode of transport – the steamboat.
When Rosie, B.B. and Mandy act to save animals from a forest fire, they jump the gun and accidentally put out a controlled burn.
In March of 1994, Clifford Lynn Draper hatches a plan to hold a group of twelve hostage on the second floor reading room of the Salt Lake City Public Library. Armed with a handgun and massive explosive device, Draper seems unstoppable and is completely unwilling to negotiate with police on the outside. But Draper hasn't planned for a brave and cunning sheriff's office lieutenant who willingly joins the group of hostages, secretly armed and waiting for his moment to spring into action.