Bear Grylls has apparently encountered an obstacle he can't overcome: contract disputes.

Discovery Channel has terminated its relationship with Grylls because the Man vs. Wild star has allegedly not fulfilled a contractual agreement to participate in two unannounced projects, The Hollywood Reporter reported Tuesday, citing unidentified sources.

Discovery confirmed it has terminated its productions with the extreme outdoorsman and survival expert but denied further comment.

"Due to a continuing contractual dispute with Bear Grylls, Discovery has terminated all current productions with him," a network spokesperson told The Reporter.

Representatives for Gyrlls did not immediately respond to requests for comment.

Discovery reportedly had multiple projects in development with the 37-year-old former member of the British Army's Special Air Service.  In addition to Man vs. Wild -- which broadcast its sixth-season finale on Discovery in August -- Grylls also starred in Worst Case Scenario, which featured Grylls putting himself in potentially life-threatening situations and showing viewers how to get out of them.

He has also reportedly starred in several additional specials for Discovery -- including Bear's Mission Everest, a 2007 project in which he attempted to fly a paramotor above Mount Everest, the world's highest mountain.

Man vs. Wild was the subject of controversy in 2007 when, following the broadcast its first season, an investigation by the show's U.K. broadcast partner determined some scenes were staged and Grylls had received indoor accommodations on at least two occasions when viewers were led to believe he was actually spending the night outdoors.

Discovery eventually decided to re-air edited versions of Man vs. Wild's first season which acknowledged some scenes had been staged and identified situations in which Grylls had received off-camera assistance. In addition, the show also implemented disclaimers stating Grylls and his crew receive support when they are in potentially life-threatening situations.

In 2008, Gyrlls also seriously injured his shoulder in a fall in Antarctica while on an independent expedition to promote the potential of alternative energies.
About The Author: Steven Rogers
Steven Rogers is a senior entertainment reporter for Reality TV World and been covering the reality TV genre for two decades.