A sunken Nazi submarine packed with toxic cargo is a ticking time bomb that could put the whole world at risk; Jeremy Wade reveals the sub's top-secret mission it was on when it sank and how experts keep it from sparking a global catastrophe.

With Joe Lycett hosting, the six remaining home sewers head back in time to the 1980s, attempting to revive the glamorous - and sometimes ridiculous - style of the decade. This is more than a stroll down memory lane, as they tackle the decade's most tailored, fun and over the top garments.

First, judges Patrick Grant and Esme Young challenge the sewers to get down to business with the trickiest pattern so far, a woman's power jacket. Creating the perfect jacket involves grappling with tailoring fabrics and taking on such daunting technical hurdles as lapel construction and inserting shoulder pads, hopefully without getting in a flap. For the transformation challenge, it's party time as the sewers let rip with their imagination, turning high-vis work clothes into party outfits.

In the made-to-measure challenge, the sewers take on their final icon of eighties fashion, the cocktail dress. Working with bold, shiny fabrics, they must create a knee-length-or-above dress that embodies the excess of the 1980s. Who will disco dance their way to garment of the week, and for whom will eighties week signal the end of an era, as they become the seventh sewer to wave goodbye to the Great British Sewing Bee?

Examining the the British government's approach to dealing with the coronavirus pandemic. With Britain's confirmed death rate from coronavirus now one of the highest in the world, and the Government's strategy to get the economy restarted and prevent a second spike still developing, Dispatches reporter Antony Barnett begins asking questions that may shed a light on how to beat the virus in the future. With the input of people at the heart of events, Barnett investigates the eight astonishing weeks that saw the UK move into lockdown, and reveals the key decisions and moments that led to the UK shutting down and that have determined what has happened since.

Experienced salvage hunter Drew Pritchard looks back at some of the most memorable finds and interesting characters he's encountered while hunting for items for his shop in Conwy.

Freddy and Baba flee the city with victim number three in the boot of the car, while Jackson and Lola make a breakthrough over a cup of green tea.

Returning Champion;

As Raven faces an unexpected threat, Clarke must keep the peace among opposing factions in Sanctum.

Smoke signals lead Roger Mooking to two popular food trucks in Texas serving up delicious ethnic eats. In Grapevine, Texas, Roger meets pitmaster Trey Sanchez of Vaqueros Texas Bar-B-Q, who's known for combining authentic Texas-style barbecue with Mexican dishes. Roger and Trey season and smoke briskets for Birria Tacos and prep Cowboy Potatoes for a pop-up with hungry locals at Hop and Sting Brewing Co. The chopped brisket is served in griddled corn tortillas with melted cheese, onions and cilantro, plus beef consomme for dipping. The smoked potatoes are diced and sauteed with onions, bell peppers and salsa in a metal disco set over hot coals, and both dishes are served with Trey's signature fiery, smoky salsas. In Austin, Texas, Justin and Lakana Trubiana park their food truck DEE DEE at Radio Coffee and Beer and serve authentic northeastern Thai dishes inspired by Lakana's family recipes. Roger and Justin light coals and preheat a massive, custom-built rotisserie that can cook up to 36 whole chickens that have been brined and rubbed with a flavorful paste of Thai aromatics and seasonings to create Gai Yang. As the succulent chickens spin and cook for two hours, Roger and Lakana grill Moo Ping, thinly sliced pork marinated in a top-secret family recipe and cooked on wooden skewers. Both dishes are served with Thai sticky rice and sauces that are both sweet and spicy.

In Flavortown, competing chefs usually have free reign of the entire market, but Guy Fieri's changing the rules and allowing the competitors to shop each aisle only once. To make it even tougher, he's throwing them an additional game in every round. When the time runs out, one chef will be standing above the rest and get to shop Flavortown Market for up to $20,000.

When Nandor and Laszlo are abducted by a coven of witches, the others must venture Brooklyn to rescue them.

With the identity of the timeline-unraveling "thread" revealed, the team's mission to protect him at all costs leads each agent to question their own values.

Jay will meet people who seek out new and different—and often ridiculous—automotive experiences. He takes funnyman Brad Garrett car shopping to find his perfect automotive match. Jay and comedian Bill Burr go for a spin in Bill's dream sleeper. Later he heads to the racetrack to try a crazy new kind of racing with Tim Allen, and travels to San Francisco to drive a street-legal, flame-breathing motorized snail. All hail the oddball cars, the one-offs, peculiar builds, weird events and those who dare to be different!

Jay will meet people who seek out new and different—and often ridiculous—automotive experiences. He takes funnyman Brad Garrett car shopping to find his perfect automotive match. Jay and comedian Bill Burr go for a spin in Bill's dream sleeper. Later he heads to the racetrack to try a crazy new kind of racing with Tim Allen, and travels to San Francisco to drive a street-legal, flame-breathing motorized snail. All hail the oddball cars, the one-offs, peculiar builds, weird events and those who dare to be different!

Dakota brings the road trip to its most chilling overnight yet, inside a shuttered Wisconsin asylum. They will be the first team ever to sleep inside its abandoned halls, where little is known about why several nurses took their own lives.

Investigative journalist Jeremy McDermott is on the trail of a secretive Narco.

In this very special episode of At Home with Amy Sedaris, Amy hosts a Labor Day all-staff, optionally mandatory BBQ in Patty Hogg's backyard. The celebration kicks off when the At Home Charter bus arrives carrying the Sedaris crew, but the festivities take a turn when a mysterious but tantalizing drifter staggers into the yard. When the stranger appears to hold the answers to life's problems he wins the staff over, diverting attention away from Amy. Will Amy ever gain the attention and loyalty of her crew back? Did she ever have it in the first place? Let's find out! Special guests include Darrell Hammond and David Koechner.

Fearing Mark's relapse, Renee searches for answers as Leonie struggles after kissing a woman. Jamie resurfaces and seeks Claudia's forgiveness while Iris continues to interfere in Sully's professional life.

A hunch pays off for police in Auckland.

Each round in this immunity challenge is worth 10 points and the contestant with the highest score at the end of round three will win immunity and be free from the upcoming elimination.