Jamie Davis reflects on the rocky road that brought him to last season's dramatic crossroads; a sneak peek at the twists and turns in the season ahead. For Discovery, Carter Figueroa is executive producer and Paola Espinosa is associate producer. Things don't slow down in winter for the wardens, even in freezing temperatures; a team of wardens rush to the scene of serious nighttime snowmobile accident while another warden is on a stakeout for coyote poachers. (NEW YORK) – It’s late in the Atlantic Bluefin Tuna season. It takes years of training to become an airline captain, but it's when a crisis strikes that a pilot really earns his stripes. Teal season has just begun in El Paso County; an injured hog needs help; Galveston County fishermen are not playing by the rules; a suspicious driver is searched in Chambers County; turtle hatchlings are released on South Padre Island. When the Texas game wardens encounter a sick bald eagle, it becomes a race against time to ensure its survival; While checking deer camps near the border of Mexico, a warden finds himself in a high-stakes foot pursuit. When the slain body of a marathon runner is found just hours before a big race, it falls to Lt. Joe Kenda to solve the case; with the help of a trusted K-9 officer, Kenda sets off to find the killer himself before he strikes again. Officer Egan sets up a decoy and checks hunters at a popular bird hunting site; Officers Towne and Bronson help rescue an injured hiker on Mount Kearsarge; Lt. Boudreau and Officer MacFadzen investigate a hunting-on-private-property call. A polar vortex brings extreme cold and brutal working conditions to truck drivers and heavy wrecker operators on The Coq; Colin fights to recover a frozen rig; Cam finds himself in a dilemma with one of Jamie's classic wreckers. ALL ON THE LINE premieres Friday, May 22 at 9pm ET/PT on Discovery Channel. On the 'Subdivider,' legendary and larger-than-life fisherman, Johnny Johnson, has assembled a tight-knit crew in his hunt for record tuna. This modified Boeing 707 is one of only two 707 tankers in the world that provide commercial air-to-air refuelling to the American military; Omega Aerial Refueling Services was launched in the late 1980s and these tankers are constantly in demand. The other boat is the ‘Julia Nicole’ is a grandfather, father and son family affair. Texas game wardens are all hands on deck after a massive flash flood; the wardens rush to a gas station that could explode; a patrol through the Rio Grande leads to an unexpected encounter. After all, his dad holds the world record for biggest catfish ever caught. Warden Tommy Johnson pays a surprise visit to the home of a known poacher; Warden Mike Boone relocates an alligator snapping turtle; Wardens Inman and Eddins get a poacher to confess. And Gord and Al must perform a delicate manoeuvre to move a shipping container full of garbage off the Trans Canada Highway. For Discovery, Carter Figueroa is executive producer and Paola Espinosa is associate producer. With only two weeks left to finish their ambitious self-rescue, Marty races to complete the walls of the log cabin; Misty expands the garden and builds a goat shelter, while Matt takes the next generation on a hunt for gold. Texas Game Warden Benny Richards is committed to conserving Texas wildlife; Game Warden Albert Flores enforces fishing laws; Game Warden Jennifer Provaznik schools anglers; Game Warden Jayme Deschaaf makes sure dove hunters follow the laws. The Antonov 124 is the world's largest serially manufactured cargo plane; built to move Soviet military vehicles and equipment, now they're in constant demand moving everything from locomotives to whales anywhere in the world. When firefighters find Victor Woods stabbed to death in his burning apartment, Detective Kenda tracks Colorado's most notorious serial killer. National Geographic’s Wicked Tuna has been shining a light on the city’s commercial fishing trade since 2012. For Raw TV, Dimitri Doganis and James Bates are executive producers and Chris Lent is Showrunner. But there’s a catch: each boat is allowed one catch per day and must reel them in by hand, resulting in a backbreaking battle that can last for hours. After chasing the biggest tuna around the world, Johnson has earned a reputation for wanting to help others along the way in order to preserve this unique community and way of life. The newest member of the CSI team, Jo Danville, a former FBI agent, is welcomed to her new job by stumbling upon the body of a young woman murdered somewhere in the building that houses the NYPD Crime Lab. For more information, please visit www.discovery.com. An unprecedented new chapter kicks off on the homestead as the Kilchers film themselves coping with Alaska's stay-at-home order amid a growing pandemic; resources must be stretched, homeschooling proves difficult and Atz Lee's PTSD resurfaces. As for the second thing: "I also know that I’m providing for my family and that I’m able to take care of the people that I love," Johnny shared. Garyâ€™s crew and family come together for a multi-wreck scene blocking the border; low power lines and a bad fuel leak complicate a delicate recovery in Toronto; a garbage hauler creates a heavy mess for the Ross crew. Hop aboard Rocky Mountaineer for a picturesque journey across Western Canada and over the Rocky Mountains as the train rolls from Vancouver to Banff, and then from Jasper back down to Vancouver. He worked with the Grateful Dead road crew in the early 1980s and toured the world before ending up in Hawaii, where he stumbled into the hunt for yellowfin tuna. Discovery Channel ’s new reality series All On The Line follows two fishing boats competing for Atlantic Bluefin Tuna off the coast of Gloucester, Mass. In the culmination of a multi-episode mystery, Mac and his team uncover the dark lair of a murderous madman, the Compass Killer; as they race to save his fourth victim, the sunrise presents one final surprise that no one expected. Alex and Kevin strike a risky deal with claim owners Jerry and Martha; the pair offer to renovate the couple's rundown 30-year-old cabin, but if the land isn't profitable, they will have to negotiate a deal that will make their investment worth it. Following a $280-million restoration project, passengers can once again experience one of the most spectacular and dangerous rail journeys in the world on Ecuador's Tren Crucero flagship luxury train. SIGN IN WATCH TV ONLINE WANT MORE DISCOVERY… Just like our Deadliest Catch crabbers, they love the life, risks and all. “One day I’m going to get a world record of my own by catching a fifteen hundred pounder. They’re ready to risk it all to bring home a fortune. "Every time we hook up, every time that rod bends, I’m on pins and needles… Every single fight is engraved in the back of my head.". The rising star of the famous Kennedy family, John F. Kennedy Jr. is piloting his brand new Piper Saratoga to Marthaâ€™s Vineyard when the aircraft mysteriously disappears. Hard-working fast food manager Missy Berry is found dead in an idling car at a deserted intersection; Kenda discovers suspects from Missy's past who may have wanted her dead; but a surprise twist in the investigation leads him into uncharted territory. I love it. The team explores the dark subculture of vampirism after a woman's body is found in Central Park with her blood drained. The intense winter has frozen the water supply on the homestead, forcing Marty to hunt for a new water source; in Hawaii, Matt and his wife Katie self-film a lesson in cacao harvesting on her family's plantation. Fifteen-year-old Chuck Limbrick returns home from school to find his mother Betty shot dead on the floor; evidence points to a robbery gone wrong, but Kenda suspects there is more to the story and uncovers a plot almost too shocking to believe. Take a ride on two magnificent journeys with New Zealand's KiwiRail: the TranzAlpine, a five-hour journey across 223 kilometres, and Northern Explorer, an 11-hour trip through five unique regions of the North Island. Johnson joined the Grateful Dead roadcrew in the early 80s and toured the world before ending up in Hawaii where he discovered yellowfin tuna fishing. A Russian commercial flight ends in a fatal nosedive, and what investigators eventually uncover leads to a call to overhaul the country's aviation system. Five people are murdered in a cold-blooded robbery at a shopping centre and much of the evidence is lost in a fire; but a fuzzy image from a newly installed surveillance camera leads Kenda on an exhaustive search that ends in a shocking confrontation. During moose season in Maine, sometimes family tradition involves breaking the law; Sergeant Simmons investigates a murdered mother deer, while Warden Curtis and canine Cruizer search the backwoods of Downeast by moonlight to find a missing hunter.