Episode 81

Set in the middle of the jungle, "The Challenge: War of the Worlds 2" returns to a classic team format; 14 Brits will battle it out against 14 Americans for their share of the $1 million-dollar prize.

Married at First Sight is an extreme social experiment that follows six brave singles yearning for a life-long partnership as they agree to a provocative proposal: getting legally married to a complete stranger the moment they first meet. Four specialists – sexologist, Dr. Logan Levkoff; psychologist, Dr. Joseph Cilona; sociologist, Dr. Pepper Schwartz; and spiritual advisor, Greg Epstein – create what they believe are three perfect couples, based on scientific matchmaking. The couples will not meet until they walk down the aisle and see each other face-to-face, for the first time, at the altar. Over the course of several weeks, episodes capture each couple's journey as they go from wedding, to honeymoon, to early nesting, to the daily struggle of working on their marriage. After several weeks together, each couple must make a decision: do they remain together or decide to divorce?

In Will Trent Special Agent Will Trent of the Georgia Bureau of Investigations was abandoned at birth and endured a harsh coming-of-age in Atlanta's overwhelmed foster care system. But now, determined to use his unique point of view to make sure no one is abandoned like he was, Trent has the highest clearance rate in the GBI.

Contestants guess hidden phrases by guessing letters one at a time. Contestants win money or prizes, as determined by a spin of the wheel, for each correct consonant they guess. But they have to pay to see what vowels are in a puzzle. The contestant that has amassed the most winnings at the end of a game goes on to play the bonus round, in which the player can win even more -- prizes frequently seen in the bonus round include automobiles, vacations and more cash.

48 Hours is a CBS news magazine that investigates intriguing crime and justice cases that touch on all aspects of the human experience. Over its long run, the show has helped exonerate wrongly convicted people, driven the reopening -- and resolution -- of cold cases, and changed numerous lives. CBS News correspondents offer an in-depth look into each story, with the emphasis on solving the mystery at its heart. The program and its team have earned critical acclaim, including 20 Emmys and three Peabody Awards.