After heading out to sea, the four had quickly found Rikki and her daughter who were in the process of closing a third volcano.
"What's going on?" thought Rikki as she noticed them pointing up to the surface.
"Why did you stop us, we were close to getting that one closed?" asked Quinn once they all had reached the surface of the ocean which was starting to get out of control with the way the waves were crashing.
"The volcanoes aren't causing the tsunami or the quakes, they are meant to stop the tsunami before they destroy the island," said Casey.
"What?!" asked Rikki and Quinn who were both shocked by this reveal. Suddenly, they were caught in the current of a large wave that began to barrel down on them.
"I hope you're right about this," said Quinn before diving back down. She then swam to the volcano that she and her mom had been trying to seal and proceeded to hold her hands out toward it.
"Let this work," she thought while the water around her began to boil.
"Whoa," said the girls on the surface as the water all around them began to boil, causing them to move away to cooler water the best they could with the current still pulling at them.
"Okay, this one may not be explainable," said Emma as big rock walls rose out of the ocean, stopping the wave in its tracks.
"At least the wave is over," said Rikki.
"Wait, where is Quinn?" asked Cleo after realizing that she had not come back up. Without saying a word, Casey and Jasmine dove under the water to search for their friend.
"Oh no," thought the two once they noticed Quinn had fallen unconscious and was sinking to the ocean floor. After they had grabbed her, Casey and Jasmine made their way back up.
"We have to get her back to land!" said Casey as she and Jasmine held Quinn who had some burns to her face and arms.
"Lets go, but keep the speed slower than normal, we don't know how bad her injuries may be," said Rikki before they all took off.