Episode 4254

The UnXplained will tackle subjects that have mystified mankind for centuries, from mysterious structures and cursed ancient cities to extraterrestrial sightings and bizarre rituals. The series will also feature contributions from top scientists, historians, engineers and researchers - each seeking to shed light on how the seemingly impossible can happen.

Hailed as one of the best sci-fi novels of the decade, Dark Matter is a story about the road not taken. The series follows Jason Dessen, a physicist, professor, and family man who – one night while walking home on the streets of Chicago – is abducted into an alternate version of his life. Wonder quickly turns to nightmare when he tries to return to his reality amid the multiverse of lives he could have lived. In this labyrinth of mind-bending realities, he embarks on a harrowing journey to get back to his true family and save them from the most terrifying, unbeatable foe imaginable: himself.

Georgie & Mandy's First Marriage follows Georgie and Mandy as they raise their young family in Texas while navigating the challenges of adulthood, parenting and marriage.

Set in Toronto at the dawn of the 20th century, Murdoch Mysteries is a one-hour drama series that explores the intriguing world of William Murdoch, a methodical and dashing detective who pioneers innovative forensic techniques to solve some of the city's most gruesome murders. Murdoch's colleagues include the love of his life, coroner and psychiatrist Dr. Julia Ogden, a staunch ally who shares the detective's fascination for science; Constable George Crabtree, Murdoch's eager but sometimes naïve right-hand man; Inspector Brackenreid, Murdoch's skeptical yet reluctantly supportive boss; and coroner Dr. Emily Grace, Dr. Ogden's protégé.

In NCIS: Origins, young Leroy Jethro Gibbs starts his career as a newly minted special agent at the fledgling NCIS Camp Pendleton office where he forges his place on a gritty, ragtag team led by NCIS legend Mike Franks.