Infiltrating Dotō Island

Synopsis
The next day, Boruto wants Taiki to sail faster so they can help Team 5, and believes he just can't go faster when he claims he's going slow so as not to attract attention from pirates like the Funato. Kagura can tell they're about to enter hostile waters by listening to the sea birds in the air. The shinobi hide as the boat is boarded by Funato clansmen. Taiki manages to bribe them, but Kawaki exposes them by getting out in the open, feeling so sick he needed fresh air. They throw the Funato clansmen into the water, and Taiki speeds up the boat to flee from them, but only for a short while, so the engine doesn't die. Kawaki apologises for exposing them, and tensions rise between Team 7 and the swordsmen. Mitsuki advocates against causing a ruckus in such a small boat. Kagura assures Team 7 the swordsmen can't betray them, and shows the cursed seals on their necks. Buntan assures Sarada they're taking this mission seriously as a way to shorten their sentences, and if they wanted to do anything, it wouldn't be in front of Kagura. They come across a destroyed island where villagers stood up to the Funato. Kagura explains how the Funato's influence grew when Araumi took over leadership of the clan, and targeted trade routes between the Land of Water and other nations, depriving them of wealth. Five years prior, Araumi was captured in an operation which Chōjūrō himself took part in, so without its leader, the Funato's influence receded. Boruto thinks they're scum, but Kawaki points out even scum has reasons for what they do. Dotō Island comes into view. The Funato clansmen on the island control the people. Boruto wants to find Team 5, but Kagura agrees that Sarada and Mitsuki would be better scouts, with the Sharingan and snakes. Sarada wants Boruto to stay on the boat, watching the swordsmen. Kawaki reminds them that Konoha researchers are also in the island, so they'll need another boat. They arrange to meet before the full moon. Sarada and Mitsuki infiltrate the island, and witness hostages carrying sacks from the mine. Mitsuki spies them through his snakes, and learns they report to someone named Tenma and are transporting gold from the mines. They want to join up with Team 5 before trying to save the villagers. Metal Lee rejoins Denki and Iwabee after setting up traps, and they discuss their situation. They're outnumbered by Funato, who have also confiscated the mining puppets. Sarada and Mitsuki learn that Team 5 hasn't been captured when a couple Funato fiddle with one of the puppets. They ambush the clansmen transporting a puppet, looking for clues about Team 5. The puppet fights them, its settings having been messed with by the Funato's fiddling. It escapes, and Sarada notices it was going after the gold on the Funato clansmen. They use it as bait in a trap and manage to reset the puppet. It leads them to Team 5, Denki still having the puppets' controller. They inform Sarada and Mitsuki the researchers have been captured. In Taiki's boat, the swordsmen antagonise Boruto, suggesting his team-mates have been eaten by sharks. Kagura reveals to Boruto the reason he's trusting the swordsmen is because he helped him when Shizuma had lead him astray. He wants to save them, like Boruto saved him. Kagura explains those three had to opportunity to escape with Shizuma, but didn't, and won't explain why. Boruto appreciates Kagura's intentions, but can't bring himself to trust them. The water gets agitated as a gigantic structure approaches them.