The new episode will air at 10 p.m. ET on the Discovery Channel. Those without cable can watch the show for free through Philo or DirecTV Stream each offering a free trial to new users. Sling is another option for streaming the show, and promotional offers are available.

You can watch the show on-demand for free on Philo or DirecTV Stream. Each service offers a free trial for new customers. In addition, Sling has promotional offers for new subscribers. In last week’s episode,

In the cast are Bryce Johnson, Mireya Mayor, Russell Acord and Biko Wright.

Deep in "The Fork," Russell rappels a 700-foot cliff to follow a heat signature in a new episode of "Expedition X" airing on Wednesday, Feb. 12.

In Season 5, Episode 12, “Perilous Descent,” “Deep in ‘The Fork,’ Russell rappels a 700-foot cliff to follow a heat signature; Mireya and Biko track signs outside their base camp; Bryce hears new information about strange vocalizations and discovers that someone has visited his command center.”

Tonight’s episode of “Expedition Bigfoot” is called “Perilous Descent.” “Expedition Bigfoot,” season six, episode four, airs at 10 p.m. Wednesday, Feb. 12, The storyline for “Perilous Descent” is, “Deep in ‘The Fork,