Following both biotech breakthroughs and the billions behind them, Kara explores the growing battle between public science and private tech power, and what it means for who gets to live longer and healthier.

Will Ferrell will host the 51st season finale on May 16, returning to Studio 8H to host "SNL" for the sixth time. The Emmy Award winner executive produces and stars in the new comedy series "The Hawk," premiering this summer on Netflix.

Paul McCartney will take the stage as musical guest for the fifth time. The incomparable musician's new album, "The Boys of Dungeon Lane," is set for release May 29.

Keiji and his friends struggle to gain the upper hand in the battle against the powerful Devil, Yuji. Keiji sets a strategy in motion that involves him sacrificing himself. Meanwhile, Hikari begins to make his move. 

A community service group find themselves under suspicion when one of their members, car salesman Eddie Morris, is pushed off the tower of a ruined castle around which the group are working. John and Janie are brought together by DCI Clarke to solve the case. However, following the shocking revelation that John has been dating Janie's mam, Yvonne, tensions remain high between the two. Though they haven't spoken in months, our crime-fighting duo must now remain professional if they hope to solve Eddie's murder.

Janie tries to give the case her full attention while getting to grips with the demands of her new, long-awaited promotion to detective inspector. As if this weren't enough, she's also living with pathologist Baxter, having moved out of her mum's house as an act of rebellion while Yvonne continues her relationship with John. Meanwhile, John employs a different tactic for the investigation by going undercover, as himself, in the community service group. John hopes to gain a better understanding of the suspects and use his signature character analysis to seek out the guilty party.

In the community service group, John and Janie question their list of suspects, which include the deceased's spiteful ex-wife, a sarky young offender, a hardened criminal, a disgraced Welsh politician and their happy-go-lucky supervisor. With mounting pressures, both personal and professional, will Janie and John be able to put their differences aside and solve the mystery?

In the quaint fishing village of Abertonnau, a trendy food shack is burned down with its owner inside. Janie arrives to investigate the murder of chef Scott Winstanley. Despite her best efforts to coax a downtrodden John from his self-imposed seclusion, Janie is seemingly unable to recruit him to help on the case.

However, upon arrival at The Ship, a neighbouring pub to the food shack, Janie is surprised to learn of an unexpected guest staying at the inn. John Chapel has checked himself in for a few days. The stay is, by John's account, a chance to recover from heartbreak. Despite this, Janie knows John can't help himself when a chance to solve a mystery appears. The pair start to interview the locals, which include the owners of The Ship – a brother-sister duo who can't keep the pub alive, an abrasive visiting ecologist and the last fisherman in town.

John and Janie begin to understand what's really going on in Abertonnau under the calm surface of the town. Fierce business rivalries, a waning fishing industry and a rare breeding seal colony all make up pieces of the puzzle – but can John assuage his aching heart long enough to crack the case? And can Janie live up to her new DI responsibilities while still being the detective she wants to be?

On the set of an epic Welsh TV drama, The Mabinogion, a runner is found dead in a young starlet's trailer. John and Janie are called to investigate the crew, and as they journey into the glamorous world of TV production, Janie finds herself starstruck by the actors, while John is simply struck by how much of an outsider he feels.

They begin their interviews with the young lead of the show, Welsh actress Olivia Whitmore, who, to Janie's surprise, is incredibly down to earth. She and Olivia click immediately, causing John to question whether Janie is able to put her personal connection aside and stay open to all suspects. Janie's potential conflict of interest is soon put into perspective, however, when they encounter the next interviewee, Randall St Clair, the actor who played John's old Caesar sidekick, who is a little frostier with John than expected. The duo explore the rest of the crew, which includes a stalactite-obsessed set designer, a laddish medic and an old-school make-up designer.

On-set injuries, secret affairs and badly behaved owls all lead Janie and John towards the answer. But forced back into the world of his former life, can John summon what's needed to uncover the truth, and can Janie remain professional when her new friend is a prime suspect?

Janie arrives at a new age commune after its founder, Sebastian ‘Chief' Granger, is found impaled on a horse plough during a crucial vote on the the commune's future. DI Janie is on the case but seems uncharacteristically keen to put the murder to bed quickly. Her reasons become clear when one of the community members is revealed to be her estranged father, Michael. Janie enlists the help of her trusty consultant John Chapel, but gives him a clear warning that her father is as unreliable as he is charming and that John is not to be taken in.

Despite this, John finds himself clicking with Michael and is unable to understand Janie's harsh assessment of her father. This point of contention between our crime-solving pair causes them to split up for the investigation. As they interview the commune members, John and Janie meet the fierce de facto new leader, a vegan lifestyle influencer, together with her devoted husband, and an angry neighbouring farmer and her meek adult son.

Disappointing parents, hidden romances and vegan bean-curd cheese are at the centre of this case. As Janie looks into the murder, old, complicated feelings around Michael are brought to the fore. Will his presence in Janie's life prove to be the disruptive force she predicted, or is John's new friendship with Michael proof that bad dads can change?

On a hot Saturday, Janie is roped into running a rehabilitation course for rule-breaking officers at Trebach CID. An already unpleasant atmosphere goes from bad to worse when Clarke drops in to say hello to one of the attendees – his old boss Phil Holmes – and finds him dead in the men's toilets. With enough evidence to consider the death foul play, Janie locks down the office, considering all the attendees as suspects in Phil's murder. On Clarke's command, John joins the team to work against the clock and solve the case.

Having been put on the course for various conduct mistakes, the group are not the most honest coppers going. Clarke's old nemesis, an exercise-crazed PC, a high-ranking workaholic civilian officer, a mild-mannered dog handler and an up-and-coming young DS make up the suspects. Can Janie and John use their skills to suss out the culprit and gather enough evidence in time to make an arrest?

While focused on the case, Janie struggles to find time for her renewed relationship with her dad. Balancing the two men in her life – Michael and John – and solving a murder in a lockdown puts Janie through her paces. Skeletons from the past, reigniting old flames and curry on the hottest day of the year are all on the cards during this investigation. Can John and Janie bring Phil's killer to justice? And will Michael's continued appearances disturb John and Janie's dynamite partnership?

At the memorial service for a rugby club's groundsman, the discovery of another death shocks the attendees. When the body of the club chairperson, Rachel Jenkins, is found in a function room, Janie and John must scrutinise everyone linked to the rugby club. With Janie's big move looming, this is set to be her last case for a while, and John starts to consider how his life will look without her.

Whilst exploring the competitive world of rugby on the case, John and Janie encounter an eclectic mix of characters, including a star rugby player at the start of his career, his competitive has-been father, the recently widowed barmaid, a humdrum firefighter and the endlessly positive captain of the women's team. Janie worries the young rugby star might be doing too much to please his dad. John has similar worries about Janie. Despite Janie's misgivings, John gets to know the suspects on the pretext of putting on a one-man show in the club's function room. Though the two find themselves at odds once again, they must pool their skills to find the murderer.

During their investigations, Janie and John find washed-up athletes, pitch-side interviews and a scuba-diving accident will all lead them towards the answer. But once the case is solved, and the dust has settled, what will become of John and Janie's partnership?

It's the start of Around the World Week, and global food icon Rick Stein joins the MasterChef Kitchen to set an extra spicy Mystery Box challenge.

Margie decides to become social media famous and Ryan helps her to go viral, which fills the theatre but piques Caitlen's interest in The Argyle. A method actor playing Julian Assange goes too deep.

Live from the MGM Grand Garden Arena in Las Vegas, Nevada.

Journalist and author Fareed Zakaria hosts this in-depth look at the major global developments of the week (the title's "GPS" stands for "Global Public Square"), with an emphasis on new ideas and innovative solutions to the World's toughest problems. Each episode also features Zakaria leading a panel discussion and interviewing a major world figure.

Boyd and Jade set off on a desperate, mind-bending search for answers, while a food run to the settlement takes a chilling turn.

Duncan jumps on an opportunity while JoAnne is burdened by her own advice.