Ah, I learned it from Les Stroud aka Survivorman, who is the real deal, seems like Bear got it right for once.
(Should be noted it’s not a good method and still has hazards, but could save your life if you don’t have another option- similar to how how Les will advocate for simply drinking from a mountain stream if you can’t purify- more than likely you won’t get giardia- even if you do, better than dying of dehydration after 3 days of no water)
Wasn’t bad but honestly was kinda boring. Pacing was kinda all over the place. And I’d wish they wouldn’t make Spock such a prominent character for storylines in regards to flinging him through so many partners.