If you’re obsessed with the ABC reality show “Expedition: Impossible,” you might want to keep your Twitter feed open tonight. Executive Producer Mark Burnett (@MarkBurnettTV) will be live-tweeting during tonight’s episode of “Expedition: Impossible” between 9 p.m.-10 p.m. PT in order to give commentary on what went on behind the scenes.

Tonight’s episode, “A Blind Man’s Nightmare,” shows the California Girls as they struggle to rappel 300 feet down a dangerous waterfall after being all but destroyed by Stage 4’s High Atlas Mountains, Eric from No Limits wades waist-deep through an intense river canyon the group has coined “blind man’s purgatory,” and the Football Players strip down to conquer the Moroccan art of Henna.

Here’s the synopsis of the series:

Featuring high adventure and human drama, “Expedition Impossible” follows 13 teams of 3, racing in a fun expedition across vast deserts, over snow capped mountains and through raging rivers in the beautifully exotic, fabled kingdom of Morocco. Each week a new stage of the expedition will be revealed to the teams. Will they crumble under the pressure of having to think clearly in the wilds of the great outdoors, or will they find a way to work together to complete their adventures? And if one person quits, the entire team is eliminated. After 10 stunning legs of competition with drama, comedy and great characters, one team will cross the finish line first to claim victory. Each winning team member will receive $50,000 ($150,000 total for the team) as well a new Ford Explorer.

Adventurer, zoologist, big cat trainer and all around risk taker Dave Salmoni hosts the show.

Below is a sneak peek of what the contestants have in store for them. To learn more about the show check out its official website on ABC.com