Revealing mistake: At the river to cross over to Mt Weather, the vine used to swing across the river is just a standard rope, camouflaged. You can see it best when Finn recovers it after Jasper has jumped.
The 100 (2014)
Episode list - season 3
Starring: Eliza Taylor, Paige Turco, Marie Avgeropoulos, Thomas McDonell
More mistakes in The 100
Earth Skills - S1-E2
Clarke: Follow me.
Bellamy: And why would I do that?
Clarke: Because you want them to follow you. And right now they're thinking only one of us is scared.