Covering one tenth of all species on the planet, Freshwater is a rich, diverse habitat filled with never-ending surprises. The fourth episode is set beneath the Yucatan Peninsula and spanning diverse locations like the rainforests of Costa Rica and the Kalahari Desert and presents a vivid exploration of how freshwater shapes life on Earth. The narrative journeys through the unique breeding rituals of gliding tree frogs in Costa Rica, the strategic hunting methods of mugger crocodiles in Sri Lanka, and the astonishing adaptations of wildlife in the Okavango Delta. It highlights the critical role of freshwater in supporting diverse ecosystems, from the teeming fish species in Lake Malawi to the perilous journey of gobies in Bioko.
The episode also addresses human impact, showcasing the extensive irrigation system in Pakistan and its unintended consequences on local wildlife, like the endangered Indus river dolphin. This captivating chapter not only showcases nature's marvels but also underscores the delicate balance between human needs and wildlife conservation.

When nine-year-old Maya Kowalski was admitted to Johns Hopkins All Children's Hospital in 2016, nothing could have prepared her or her family for what they were about to go through. As the medical team tried to understand her rare illness, they began to question the basic truths that bound the Kowalskis together. Suddenly, Maya was in state custody despite two parents who were desperate to bring their daughter home. The story of the Kowalski family as told in their own words will change the way you look at children's healthcare forever.
'Take Care of Maya' delves into the harrowing narrative of a family navigating the treacherous waters of the U.S. parental rights. The storyline underscores the agonizing journey of parents who find themselves battling against seemingly insurmountable odds to reclaim their child. As the story unfolds, it becomes evident that the issues they face are deeply entrenched in the ethical and moral dilemmas of the U.S. system. The narrative hints at potential flaws in the healthcare or judicial sectors that further complicate their fight for justice. Throughout, the audience is exposed to raw emotions, moments of despair, confrontation, and an unwavering spirit of resilience.

Dave Paulides investigates cases of elk hunters who've gone missing from specific regions of North America, and explores the theory that there could be a connection between these disappearances and sightings of UFOs. This project brings together top officials from the FBI, local law enforcement, search team members and others that describe a spell-binding fact trail that will leave the viewer asking more questions than officials are willing to answer.

Following their identification, the Tsarnaev brothers killed an MIT policeman, then kidnapped a man in his car. They had a shootout with the police in nearby Watertown, during which two officers were severely injured (one of whom, Dennis Simmonds, died a year later). Tamerlan was shot several times, and his brother Dzhokhar ran him over while escaping in the stolen car. Tamerlan died soon after.
An unprecedented manhunt for Dzhokhar ensued, with thousands of law enforcement officers searching a 20-block area of Watertown. Residents of Watertown and surrounding communities were asked to stay indoors, and the transportation system and most businesses and public places closed. After a Watertown resident discovered him hiding in a boat in his backyard, Dzhokhar Tsarnaev is cornered into an intense standoff. As officials navigate remaining questions and suspicions, the city emerges Boston Strong.

Spring has sprung at Diddly Squat Farm, and that heralds the release of cows and chickens from their winter captivity. Jeremy's restaurant plans are in tatters, but that's not the end of his dealings with the council, who are also sending letters raising issues about what's being sold in the shop itself. From here on in, Jeremy decides that he and all around him must operate in a world of loop-holes and just-within-the-law cunning wheezes. Pepper the prized heifer still isn't pregnant and her last chance saloon arrives in the shape of a bull called Break Heart Maestro.
A chat with Alan the builder provides a Eureka Moment: the restaurant idea is not dead after all! There's much excitement as building work begins and Jeremy meets a chef called Pip. There's less excitement when he has to take his first steer to the abattoir.

Under the management of new team principal Otmar Szafnauer, Alpine F1 Team goes into 2022 retaining their drivers Fernando Alonso, a veteran of Team Enstone and two-time Champion, and Esteban Ocon, the driver who took Alpine to their first victory since 2014, with a new reserve driver in Australian driver and 2021 Formula Two champion Oscar Piastri. Alpine scores consistent points scores in Miami, Baku, and Austria.
By the French round - the home race of Alpine - McLaren and Alpine are tied for sixth in the Constructors' Championship. Early into the race, Alonso edges past Lando Norris for fourth, with Ocon behind him. However, Ocon inadvertantly takes Yuki Tsunoda out of the race, giving him a five-second penalty. Pitting soon after drops him down out of the points, with Alonso now sixth and a second behind Norris. Alonso holds the McLarens up to buy enough time for Ocon to pass them. Alonso finishes sixth and Ocon eighth in their home race.
Before Hungary, it is revealed that four-time Champion Sebastian Vettel will retire from Formula One, sending the paddock and media into a frenzy with the prospect of a ‘silly season’ on the horizon for Aston Martin; Szafnauer is adamant that Alonso is staying with Alpine for 2023. Hungary is the make-or-break round for Alpine - both drivers need to score higher points than McLaren to achieve fourth in the Constructors' Championship. Ricciardo and Lance Stroll both overtake the Alpines, but Ricciardo punts Stroll off the track, giving him a five-second penalty. Alonso and Ocon barely hold on to the points, and Ricciardo finishes fifteenth after his penalty, allowing Alpine to secure fourth place. The team and their title sponsors BWT celebrate at a sponsor dinner. The next day, Alonso reveals he had received a call from Aston Martin team owner Lawrence Stroll to replace the outgoing Vettel, moving him out of Team Enstone. Left with no other option, Alpine announce Piastri for the 2023 season, and McLaren are looking to replace Ricciardo with Piastri, who they have had eyes on. To make matters worse for Alpine, Piastri announces on Twitter that he will not be driving for the team, considering he had not signed such a contract with them.