Ep 4. The Walrus Chief

In The Octonauts season 1 episode 4, titled "The Walrus Chief," the team of underwater explorers takes a trip to the Arctic to visit a group of walruses. The walruses are led by a chief who is worried about the safety of his herd. He explains to the Octonauts that a group of orcas has been seen in the area, and he fears that they may attack the walruses.

The Octonauts quickly spring into action, offering to help the walrus chief keep his herd safe. They set up a lookout tower to keep an eye out for any signs of orcas in the area, and they come up with a plan for how to scare the orcas away if they do show up.

As they are patrolling the area, the Octonauts notice that some of the walruses seem to be missing. They investigate and find that a group of baby walruses has become separated from the rest of the herd. They quickly realize that the orcas must have taken the babies, and they start searching for them.

Eventually, they locate the babies in an underwater cave, guarded by the orcas. The Octonauts come up with a plan to distract the orcas and rescue the baby walruses. They successfully carry out their plan and return the babies to the safety of the herd.

The walrus chief is overjoyed and thanks the Octonauts for their help. He vows to keep a closer eye on his herd from now on and to be better prepared if the orcas ever return.

Overall, "The Walrus Chief" is an action-packed episode that teaches children about the importance of protecting animals and working together to solve problems. It is a great addition to the first season of The Octonauts and is sure to be enjoyed by children and adults alike.