The Sea Krait is a venomous sea snake and a friend of the Octonauts. She had laid her eggs in the Garden Pod of the Octopod, and the Octonauts tried to make her stay inside because of the Giant Whirlpool outside. They also helped the Sea Krait find her babies after the eggs have hatched and are trying to find water. They find five babies, but there are supposed to be six, so one was missing. Her baby girl was in the HQ when she accidentally made the ship reverse into the whirlpool. The baby then went out through the vent and was outside on the window, so Kwazii and Peso use suction cup suits to follow and save her. Peso even made a heroic jump to catch her when she was being pulled away in the whirlpool, and Kwazii was able to catch both of them. Once the whirlpool passed, the mother snake is reunited with her rescued daughter, and she and all her children exit the Octopod through the vent to the sea. Then, she thanks the crew for their help, claiming their ship was the perfect place to lay her eggs, and they all bid farewell and depart.