Comedian Will Ferrell will join adventurer Bear Grylls for a new episode of the Discovery Channel's Man vs Wild.
The Anchorman star joined the Born Survivor star in northern Sweden for an upcoming edition of his exploration show and, with Grylls, rappelled down a hundred-foot frozen waterfall and tandem abseiled off a helicopter.
The unlikely pairing also created their own makeshift snow shoes and drank their own urine.
Ferrell's appearance on Man vs Wild coincided with the publicity campaign for new Universal Pictures comedy Land of the Lost, a remake of the hit US series.
"Will did an amazing job in subzero, very unforgiving conditions," said Grylls.
"He trusted me when it mattered, and we survived... He should be very proud of how he performed."
Step Brothers actor Ferrell described his trip with Grylls as "a thrill of a lifetime, even though I did get urine-drunk, which is sad."
The episode will be screened in the US in early June.