The scene starts off with Urashima Keitaro giving up during the last five minutes of his exam and fleeing on a boat. He verbally beats himself up for letting them down, and vows to forget them all (even his precious Naru) and move on. He tries to toss his print club album and exam ticket overboard, and when it blows back in his face, then blows overboarboard, he goes after it. At sear, he has a rather disturbing 'daydream' and washes ashore on a seemingly large and deserted island. A torturous four days later, he gets chased by a huge turtle and finds his album and ticket. He finds a little note of encouragement from everyone on the back, and decides they just mean too much to him...Especially Naru. He then gets hit by a car, driven by Seta of course. He accepts Seta's offet to become his assistant once more after pigging out on food.
The scene switches to Hinata Sou. Everyone is really worried about Keitaro, but then they receive a fax from him, explaining his situation on Pararakelse Island. Naru, pissed, decides to go after him. Kitsune checks out the exam results for Naru with the others. They meet up with Mutsumi, and discover that both Naru abd Mutsumi have passed their exams! Shinobu insists on checking for Keitaro, and everyone is very shocked to discover that he passed as well. Shinobu, Su and Sarah go after Keitaro. Motoko, Mutsumi and Kitsune go after them. The scene switches back to Pararakelse Island. Naru storms in on Keitaro eating lunch, accompanied by Tama-chan. Naru chases and beats on Keitaro, and then he tells her to "Drop dead." She faints due to heat exhaustion. Keitaro gets hit by something and passes out next to her. Someone who could pass as Shinobu's clone tends to them. She runs away, Naru begins crying, then clocks Keitaro for a tactless comment. The girl, Nyamo, turns out to be one of Seta's helpers...She's scared of Naru...The huge turtle from before sets his/her (?) sights on Tama-chan, and knocks both Naru and Keitaro into a huge pit. Naru goes crazy with a shovel and unearths a hotspring and an ancient turtle picture...
Meanwhile, Su, Shinobu, and Sarah land on Easter Island o.O;
Naru's discovery turns out to be yet another ancient turtle civilization. Thanks to Seta's shitty driving, Keitaro, Nyamo, and Naru get stranded in the desert, attacked by a horde of snakes and leeches before they discover an oasis. Naru and Nyamo then don leaf bikini's. Keitaro cooks, and later saves Naru from a scorpion bite, but her bikini top ends on his shoulder, so she thinks he was just being perverted.
Shinobu, Su and Sarah arrive on the island, get lost in the desert, attacked by snakes and leeches and almost die before Motoko, Mutsumi, and Kitsune save the day. Shinobu in turn saves Motoko when she passes out once surrounded by a bunch of big turtles. Naru starts to confess a tiny bit, but they get interrupted by the whole gang. They all look posessed and beat on the two. Kitsune then breaks Naru the good news. Keitaro nearly dies (well, he turns to stone) at the news that he passed.
Shinobu, doesn't like Nyamo at first, as she thinks she is a 'floozy'. Seta then shows up, and Nyamo and Shinobu go off for some fuel. Shinobu saves Nyamo, they become friends, and they are able to use Seta's van once they fuel it up.
Naru gets really sick, Keitaro won't leave her although it means not getting his Toudai forms mailed in. Naru forces him to the airport, but he misses the plane. Keitaro tries to tell Naru how he feels, and as usual, is interrupted. They discover that Pararakelse is one day behind Japan. Naru starts to tell Keitaro she loves him, but her skirt is caught by the wind, and Keitaro accidently sneaks a peek, and gets sent back to Japan via the Naru-punch.
The last thing you see is Nyamo, Seta, and the big turtle waving to the Hinata cew's plane.