Episode 10 of Outer Banks season 3 starts with John B’s plane making its way to the Orinoco Basin. The group looks over their map, determining their next course of action. As for Big John, he’s desperately translating but he’s only got a few hours to prove his worth to an increasingly impatient Carlos Singh. In that time, John B and the others touch down at the airport. Sarah refuses to let her dad be part of their grand adventure.

John B and Kie touch down not long after, but they’re a couple of hours out from the landing zone. For now, the attention is on John B and the group. They need to try and find their river guide, Jose. As they begin asking around at the bars, they overhear a commotion upstairs which happens to be Big John. Cor, what a massive bit of luck that John B and the others happen to be outside the exact window!

Fireworks are set off inside the house. This is enough of a distraction for Big John to get the jump on his captors. After their reunion, they flee through the streets and escape from Singh and his goons. When they finally catch a break, Big John looks over the documents that Pope has found. He realizes they’re legit and it could be their ticket to unlocking the treasure

Finally, Jose is located by the group down by the river. but they also manage to stumble into Ward. Everyone is under tension, but because Singh is searching the market for them, they have to act swiftly. Before it's too late, everyone scurries to board the ship together.

One by one, the glyphs start to mark. It reveals a message about the riches of the earth, darkness, the seeker, and patience. The location of El Dorado is indicated by all of these diverse glyphs. But, the Secret of the Gnomon will remain a mystery for some time.

Big John won't divulge what the message says, which is probably for the best when Singh and his thugs come. It turns out Ward was the one who did this. In exchange for Carlos Singh giving him the El Dorado wealth, he has agreed to let himself and Sarah depart unharmed. Big John won't part with it, saying he has other ideas for the treasure and doesn't want to part with it. One by one, the glyphs start to mark, revealing a message about the riches of the earth, darkness, the seeker, and patience. The location of El Dorado is indicated by all of these diverse glyphs, but the Secret of the Gnomon will remain a mystery for some time.

Big John won't divulge what the message says, which is probably for the best when Singh and his thugs come. It turns out Ward was the one who did this. In exchange for Carlos Singh giving him the El Dorado wealth, he has agreed to let himself and Sarah depart unharmed. Big John won't part with it, saying he has other ideas for the treasure and doesn't want to part with it.

Season 3 of Outer Banks is now streaming on Netflix.